Our Services · Calium Seller Services

Marketplace services for Amazon sellers, explained in full.

Calium Technologies Private Limited (Calium Seller Services) is an e-commerce service provider based in New Delhi, India, operating since 2017. We provide Account Management, Advertising Optimization, Training, Cataloging and Taxes services to sellers on Amazon.in. Services are delivered by our in-house team inside the seller's own Seller Central and Amazon Ads accounts, using secondary-user permissions that the seller grants and can revoke at any time. Training is delivered live and requires no account access.

01

Account Management

Amazon SPN category: Account Management

Day-to-day operation of your Amazon.in Seller Central account by a named account manager, under permissions you grant and can revoke at any time.

Who it is for

Manufacturers, brand owners, distributors and resellers already selling on Amazon.in (or registering now) who need accountable, professionally run operations.

Seller Central access we request

  • Inventory & Order Tracking (view/edit)
  • Product Listing (edit)
  • Pricing (edit)
  • Buyer Communication (edit)
  • Account Health / Performance (view)

Granted by you in Seller Central > Settings > User Permissions; revocable at any time. See our Security & Data Protection page.

Request this service

What the service entails

Account Management is a managed-operations service for Amazon.in sellers. A named account manager, supported by our cataloging, advertising and compliance staff, performs the recurring Seller Central work for your account: order and inventory monitoring, buyer communication within Amazon's policies, promotions, account-health monitoring and weekly reporting.

Work is performed inside your own Seller Central account using the secondary-user permissions you grant to Calium (Seller Central > Settings > User Permissions). You remain the account owner; we never ask for your primary login credentials. Access is scoped to the roles the service needs and is removed when the engagement ends.

What we deliver

  • Seller account registration support, GST/PAN/bank verification and category approvals
  • Brand Registry enrolment support and brand-protection set-up
  • Daily order monitoring, Easy Ship / FBA shipment creation and inventory replenishment planning
  • Buyer messages, A-to-Z claims, returns and refunds handled within Amazon's response SLAs
  • Pricing updates, Lightning Deals, coupons and event (Prime Day / Great Indian Festival) planning
  • Account Health monitoring: ODR, Late Shipment Rate, Cancellation Rate, Valid Tracking Rate and policy notifications
  • Weekly written performance report and monthly review call

Benefits to your business

  • One accountable owner for Amazon operations instead of several unconnected freelancers
  • Healthy account metrics that protect Buy Box eligibility and reduce suspension risk
  • Planned deal calendars and inventory so stock-outs and over-stocks are reduced
  • Transparency: you see every action in your own account and receive weekly written reports

Our expertise

  • Managing Amazon.in seller accounts since 2017 across apparel, home, kitchen, beauty, grocery, electronics accessories and industrial supplies
  • Working knowledge of Seller Central: Manage Inventory, Manage Orders, Reports, Brand Registry, Account Health dashboard and Performance Notifications
  • Standard operating procedures aligned to the Amazon Seller Code of Conduct and Selling Policies

How a client engages us

  1. 1.Discovery call (30 minutes) to understand your catalog, volumes and goals
  2. 2.Written account audit and 30-60-90 day plan with KPIs, shared within 5 working days
  3. 3.Service agreement and monthly retainer confirmed in writing (scope: operations-only or full account management)
  4. 4.You grant Calium secondary-user permissions in Seller Central for the agreed roles only
  5. 5.Weekly report every Monday; monthly review call; either party may end the engagement with 30 days' notice, after which our access is removed
02

Advertising Optimization

Amazon SPN category: Advertising Optimization

Planning, set-up and weekly optimisation of Amazon Ads campaigns (Sponsored Products, Sponsored Brands, Sponsored Display) in your own Amazon Ads account.

Who it is for

Amazon.in sellers currently spending on Amazon Ads who want lower ACoS and clearer profitability reporting, and brands launching new ASINs that need advertising structure from day one.

Seller Central access we request

  • Advertising (edit) — Seller Central / Amazon Ads account user access
  • Business Reports (view) for conversion and session data

Granted by you in Seller Central > Settings > User Permissions; revocable at any time. See our Security & Data Protection page.

Request this service

What the service entails

Advertising Optimization is the planning, launch and continuous management of Amazon Ads campaigns for Amazon.in sellers. We work inside your Amazon Ads console using the access you grant us, so spend, campaigns and reports always remain in your account.

Deliverables are defined in writing at the start of the engagement: a campaign architecture (Automatic for discovery, Broad/Phrase for research, Exact for harvesting proven terms, Product Targeting for defence), a target ACoS/TACoS agreed with you, and a weekly optimisation routine covering search-term harvesting, negative keywords, bid and placement adjustments, budget pacing and creative refresh for Sponsored Brands.

Advertising Optimization does not include guaranteed sales or ranking outcomes; results depend on product, price, reviews and inventory availability. We report actual spend, sales and ACoS every month against the agreed targets.

What we deliver

  • Advertising audit: wasted spend, ACoS by campaign, keyword overlap, missed placements and budget caps
  • Keyword research using Brand Analytics (where available), search-term reports and competitor ASIN analysis
  • Campaign build-out for Sponsored Products, Sponsored Brands (including video) and Sponsored Display
  • Weekly optimisation: bids, budgets, placement modifiers, negative keywords and search-term harvesting
  • Brand Store set-up/refresh and Sponsored Brands creative briefs (headline, lifestyle image, video)
  • Deal, coupon and event advertising plans for Prime Day and festive sales
  • Monthly report: spend, attributed sales, ACoS and TACoS, impression share and organic rank movement for tracked keywords

Benefits to your business

  • Across accounts restructured in 2025, median ACoS moved from 34% to 20% within 8 weeks while attributed sales rose 22% (internal client data; account-specific results vary)
  • Advertising structured to support organic ranking, reducing long-term dependence on paid traffic
  • Profitability visibility through TACoS and contribution-margin reporting
  • Month-to-month retainer; all campaigns, data and history stay in your Amazon Ads account

Our expertise

  • Amazon Ads campaign management for Amazon.in sellers since 2017 across Sponsored Products, Sponsored Brands and Sponsored Display
  • Documented weekly optimisation SOP and bid rulebook applied to every managed account
  • Team trained using Amazon Ads learning console material and Amazon Seller University

How a client engages us

  1. 1.Share read-only Amazon Ads access (or a recent Sponsored Ads report export) for a free audit
  2. 2.Receive the written audit with proposed structure, target ACoS/TACoS and monthly retainer within 5 working days
  3. 3.Sign the service agreement; grant Calium access to your Amazon Ads account (Advertising permission in Seller Central or an Amazon Ads account user invitation)
  4. 4.Restructure and launch within the first 2 weeks; weekly optimisation thereafter
  5. 5.Monthly performance review; cancel with 30 days' notice and we remove our access
03

Training

Amazon SPN category: Training

Instructor-led training on selling on Amazon.in — Seller Central operations, listing, Amazon Ads and account health — for founders and in-house teams, delivered live online or at our New Delhi office.

Who it is for

New and prospective Amazon.in sellers, MSMEs and exporters entering e-commerce, and companies that want to build or upskill an in-house marketplace team.

Seller Central access we request

  • No Seller Central access required — you operate your own account during hands-on sessions

Granted by you in Seller Central > Settings > User Permissions; revocable at any time. See our Security & Data Protection page.

Request this service

What the service entails

Training is an instructor-led service that teaches business owners and their staff how to operate an Amazon.in seller account correctly and in line with Amazon's policies. Sessions are delivered live (video call or in person at our Laxmi Nagar, New Delhi office) in Hindi and English by Calium account managers who run live seller accounts every day.

Training does not require any access to your Seller Central account. Where you prefer hands-on practice, you operate your own account during the session while the trainer guides you on screen. Every programme includes written SOP documents, checklists and 30 days of post-training email/WhatsApp query support.

What we deliver

  • Amazon Seller Fundamentals (2 sessions): registration, GST requirements, category selection, listing basics, Easy Ship vs FBA, fee structure and payments
  • Listing & Cataloging workshop: keyword research, title/bullet/description writing to Amazon style guides, image requirements, A+ Content, bulk flat files
  • Amazon Ads workshop: campaign types, structure, bidding, reports and a weekly optimisation routine
  • Account Health & Compliance workshop: performance metrics, policy violations, Plans of Action and appeal writing
  • FBA & inventory planning: shipment creation, storage fees, IPI score, stranded inventory and removals
  • Multi-marketplace module: reusing your Amazon catalog on Flipkart, Meesho, Myntra and JioMart
  • Custom corporate training for in-house teams with SOP hand-over and a skills checklist

Benefits to your business

  • Build in-house capability and reduce dependence on agencies
  • Avoid common beginner errors: policy violations, wrong category selection, mis-configured shipping and tax settings
  • Account-specific, practical instruction rather than generic theory
  • Written SOPs and 30 days of follow-up support after each programme

Our expertise

  • Trainers are working Calium account managers operating live Amazon.in seller accounts
  • Curriculum developed and refined since 2017 and updated as Seller Central and Amazon Ads change
  • Delivery in Hindi and English, online or in person

How a client engages us

  1. 1.Tell us who will attend and their current experience (a 15-minute call or the enquiry form)
  2. 2.Receive a proposed curriculum, schedule, delivery mode (online / New Delhi office) and fee in writing
  3. 3.Confirm dates; attendees receive a pre-reading checklist
  4. 4.Attend live sessions (typically 2–3 hours each); receive SOP documents and recordings where recorded
  5. 5.30 days of post-training query support by email/WhatsApp
04

Cataloging

Amazon SPN category: Cataloging

Creation and maintenance of compliant, keyword-researched product listings and bulk catalog uploads on Amazon.in.

Who it is for

Sellers launching new products, migrating catalogs from other marketplaces, or fixing suppressed or under-performing listings.

Seller Central access we request

  • Product Listing (edit)
  • Manage Your Experiments / A+ Content (edit) for Brand Registry sellers

Granted by you in Seller Central > Settings > User Permissions; revocable at any time. See our Security & Data Protection page.

Request this service

What the service entails

Cataloging covers the creation, correction and upkeep of product detail pages on Amazon.in. We research buyer keywords, write titles, bullet points and descriptions that follow Amazon's category style guides, prepare images to Amazon's technical specifications and upload catalogs through category flat files or the Add Products workflow.

For Brand Registry sellers we build A+ Content and Brand Stores. We also fix existing catalogs: suppressed listings, variation (parent/child) errors, incorrect browse nodes, duplicate ASINs and image-compliance rejections. A product information (PIM) sheet is maintained as the single source of truth for every SKU.

What we deliver

  • Keyword research and competitor listing analysis per product
  • Title, bullet point, description and backend search-term writing to Amazon style guides
  • Image editing to Amazon specifications (pure white background, 1000px+, 85% frame fill) and infographic creation
  • Bulk listing creation through category flat files and inventory loader templates
  • Variation family creation and parent–child relationship fixes
  • A+ Content and Brand Store design for Brand Registry sellers
  • Catalog maintenance: suppressed-listing recovery, browse-node correction, duplicate merging and PIM upkeep

Benefits to your business

  • Higher conversion from clear, benefit-led, keyword-rich content
  • Fewer listing rejections and suppressions
  • Consistent brand presentation across Amazon and other Indian marketplaces
  • Standard catalogs of up to 100 SKUs typically live within 7–10 working days of receiving complete product data

Our expertise

  • Catalogs created for Amazon.in sellers since 2017 across apparel, home, grocery, beauty and electronics accessories
  • Working knowledge of Amazon category style guides, valid-value lists and flat-file error codes
  • In-house image editing and A+ design

How a client engages us

  1. 1.Send your product data and images (or a sample of 5 SKUs) for a free catalog review
  2. 2.Receive a written scope, timeline and per-SKU or project fee
  3. 3.Grant Product Listing permission in Seller Central (or send us flat files to prepare for your own upload)
  4. 4.Listings created, QA-checked and submitted; we fix any errors Amazon returns
  5. 5.Hand-over of the PIM sheet and image library; optional monthly maintenance retainer
05

Taxes

Amazon SPN category: Taxes

GST registration, Seller Central tax settings, TCS/TDS reconciliation and return-filing support for Indian marketplace sellers, delivered with practising chartered accountants.

Who it is for

Amazon.in and other marketplace sellers who want tax registrations, reconciliations and marketplace tax settings handled by one team that understands both Seller Central reports and the GST portal.

Seller Central access we request

  • Tax Document Library / Tax Settings (view/edit)
  • Payments & Settlement Reports (view)

Granted by you in Seller Central > Settings > User Permissions; revocable at any time. See our Security & Data Protection page.

Request this service

What the service entails

Taxes covers the Indian tax obligations specific to marketplace selling: GST registration (and additional-place-of-business registrations for FBA warehouses), correct HSN codes and GST rates on every listing, Seller Central tax settings, monthly reconciliation of marketplace settlement reports against TCS (GSTR-8) and TDS (Section 194-O) credits, and preparation support for GSTR-1 / GSTR-3B.

Statutory filings and sign-offs are performed by practising chartered accountants engaged by Calium; Calium prepares the marketplace data, reconciliations and Seller Central configuration.

What we deliver

  • New GST registration and additional place of business (APOB) registrations for FBA fulfilment centres
  • HSN code mapping and GST rate assignment for every SKU
  • Seller Central tax settings: Product Tax Codes, invoice configuration and GSTIN display
  • Monthly reconciliation of settlement reports with GSTR-2B / TCS credits (GSTR-8) and Form 26AS TDS (Sec 194-O)
  • GSTR-1 / GSTR-3B preparation and filing support through partner chartered accountants
  • Handling marketplace tax queries, invoice mismatches and GST notices relating to e-commerce sales
  • Payment reconciliation: settlements vs orders, fee verification and FBA reimbursement claims

Benefits to your business

  • Input-tax credit on marketplace fees and TCS/TDS credits claimed every month
  • Fewer payout holds or listing issues caused by GST mismatches or missing state registrations
  • One point of contact for marketplace reports and GST compliance
  • Recovery of FBA reimbursements that are frequently left unclaimed

Our expertise

  • Reconciling Amazon, Flipkart and Meesho settlement reports for sellers since 2017
  • Statutory work delivered with practising chartered accountants
  • Experience with multi-state FBA registrations and e-commerce-specific GST provisions (Section 52 CGST Act, Section 194-O IT Act)

How a client engages us

  1. 1.Share your GSTIN(s), marketplaces and a recent settlement report for a free compliance review
  2. 2.Receive a written compliance report and monthly fee
  3. 3.Grant Tax / Finance report access in Seller Central; share GST portal access with the chartered accountant only where filing is included
  4. 4.Monthly reconciliation delivered by the 10th; filing support before statutory due dates
  5. 5.Quarterly compliance summary
06

Account Health & Reinstatement

Amazon SPN category: Account Management

Proactive policy-compliance monitoring and professionally drafted Plans of Action for suspended or at-risk Amazon.in seller accounts and ASINs.

Who it is for

Sellers with account-health warnings, deactivated ASINs or suspended accounts, and brands that want proactive protection.

Seller Central access we request

  • Account Health / Performance Notifications (view)

Granted by you in Seller Central > Settings > User Permissions; revocable at any time. See our Security & Data Protection page.

Request this service

What the service entails

Account Health & Reinstatement protects the seller account itself. Proactively, we monitor performance metrics and policy notifications and correct issues before they escalate. Reactively, when an account or ASIN is deactivated, we diagnose the root cause, draft a Plan of Action (root cause, corrective actions, preventive measures, evidence) and manage each round of appeal until Amazon responds.

We cannot guarantee reinstatement; Amazon alone decides appeals. We prepare accurate, complete appeals and advise honestly when an appeal is unlikely to succeed.

What we deliver

  • Weekly Account Health review: ODR, LSR, cancellation rate, VTR, policy and IP complaints
  • Root-cause diagnosis for suspensions: inauthenticity, intellectual property, review manipulation, related accounts, drop-shipping and performance
  • Plan of Action drafting with an organised evidence pack
  • Appeal management and follow-up with Account Health Support
  • Preventive SOPs: supplier invoice verification, listing compliance checks and customer-service templates

Benefits to your business

  • Appeals that follow Amazon's stated Plan of Action structure
  • Reduced recurrence through documented preventive processes
  • Business continuity where ASIN-level selling continues during an appeal

Our expertise

  • Reinstatement casework for Amazon.in sellers since 2017 across major suspension categories
  • Appeals written to Amazon's Plan of Action format with organised supporting documents

How a client engages us

  1. 1.Send the Amazon notification and your account-health screenshot for a same-day assessment
  2. 2.Receive a written diagnosis, appeal plan and fixed project fee
  3. 3.Provide documents (invoices, authorisations, order data); we draft the Plan of Action for your approval
  4. 4.You submit from your account, or grant Account Health (view) access so we can track the case
  5. 5.Follow-up on each Amazon response until the case is closed; preventive SOP hand-over
Company profile

Who you are working with.

Calium Technologies Private Limited (Calium Seller Services) is an e-commerce service provider based in New Delhi, India, operating since 2017. We provide Account Management, Advertising Optimization, Training, Cataloging and Taxes services to sellers on Amazon.in. Services are delivered by our in-house team inside the seller's own Seller Central and Amazon Ads accounts, using secondary-user permissions that the seller grants and can revoke at any time. Training is delivered live and requires no account access.

Service categories offered

Account ManagementAdvertising OptimizationTrainingCatalogingTaxes
Legal entity
Calium Technologies Private Limited, a private limited company registered in India, trading as Calium Seller Services
Registration
CIN U72900DL2017PTC326772 (Ministry of Corporate Affairs) · GSTIN 07AAHCC3058Q1Z6
In business since
2017 — e-commerce operations and consulting for Indian marketplace sellers
Sellers served
5000+ Amazon.in seller accounts and 2000+ Flipkart seller accounts managed, onboarded or trained (company records)
Marketplaces
Amazon.in (India). Also Flipkart, Meesho, Myntra, Ajio, JioMart and Snapdeal for multi-channel clients.
Head office
A-42, 3rd Floor, Gurunanakpura, Laxmi Nagar, Delhi 110092, India
Team
In-house account managers, cataloging and image specialists, advertising analysts and compliance/appeals writers; practising chartered accountants engaged for statutory tax work
Reporting
Weekly written performance report and monthly review call for every managed account
Contact
+91 78273 04742 · info@calium.in · www.calium.in
Service delivery
In-house team working inside the seller's own Seller Central and Amazon Ads accounts under seller-granted, revocable permissions; no primary credentials requested

How sellers authorise Calium

  1. 1.Calium is registered as a service provider with Amazon and applies only for the Seller Central roles each service needs (listed under every service above).
  2. 2.You invite Calium as a secondary user in Seller Central > Settings > User Permissions (or in your Amazon Ads account for advertising), selecting only the permissions for the service you have engaged.
  3. 3.Our named team members work under their own user access; we never ask for your primary login, password or OTP.
  4. 4.You can view, change or remove our permissions at any time. At the end of an engagement we ask you to remove our access and we delete any information we hold within 30 days.
Read our Security & Data Protection commitments
Success stories & client testimonials

Results our clients report.

Figures below are from client accounts we manage; testimonials are provided by the clients named. Client references are available on request.

Amazon · Case study

ZUPIO

+200%

monthly revenue growth · ₹95,000 → ₹2,85,000

Challenge: Listings were repeatedly flagged for compliance issues, causing suppressed ASINs and lost sales.

What we did: We took over account management, resolved the compliance flags, and corrected the listing content and documentation. We then re-optimized the catalog and restored the listings' visibility.

Amazon · Case study

DELHI WARDROBE

+150%

monthly revenue growth · ₹2,00,000 → ₹5,00,000

Challenge: Sponsored ad spend was high but ACoS was poor, with wasted clicks on broad, irrelevant keywords.

What we did: We restructured campaigns by match type, added negative keywords, and shifted budget to top performers. Sales grew while ad spend became far more efficient.

Meesho · Case study

AU Collections

+120%

monthly revenue growth · ₹1,50,000 → ₹3,30,000

Challenge: Margins were squeezed by low price points, and the seller was unsure which products to prioritize.

What we did: We analyzed the catalog to identify high-demand, better-margin products and recommended new SKUs. We also optimized pricing and shipping settings and cleaned up the listings.

Amazon · Case study

IVS COSMETICS

+700%

monthly revenue growth · ₹40,000 → ₹3,20,000

Challenge: A new brand with no reviews, no brand awareness, and tight limits on the launch advertising budget.

What we did: We built a launch strategy with a phased ad rollout, Brand Registry and A+ content setup, and a focused hero-SKU approach before expanding the range.

Flipkart · Case study

Fabzone

+160%

monthly revenue growth · ₹8,50,000 → ₹22,10,000

Challenge: High return rates and inconsistent catalog data (sizes, attributes, images) were hurting visibility and seller ratings.

What we did: We standardized the catalog and size charts, added accurate attribute mapping, and improved image quality. We also introduced promotion planning around sale events, which cut returns and improved search placement.

Amazon · Case study

Elite Finds

+240%

monthly revenue growth · ₹1,20,000 → ₹4,08,000

Challenge: Strong products, but weak listings, thin reviews, and a crowded category with heavy price competition.

What we did: We rebuilt the listings with keyword-led titles, A+ content and lifestyle imagery. We then set up structured Sponsored Products campaigns and a review-generation plan, which lifted conversion and ranking.

“Our Account Manager has been managing our Amazon seller account exceptionally well. She is professional, disciplined, proactive, and highly supportive. Her regular follow-ups, timely updates, and attention to detail make account management smooth and efficient. We truly appreciate her dedication, responsiveness, and commitment to helping our business grow. Excellent service and highly recommended!”
Manish Puniya · Founder, Shop Lens · Amazon seller
“Excellent FBA support and training! The team was very helpful, responded quickly, and resolved my issue without any hassle. They were polite, professional, and made the whole process smooth. I'm very satisfied with the service.”
Aryan Singh · Founder, VEEX ECOMM · Amazon seller
“The team has been consistently monitoring and managing key areas including sales performance, PPC campaigns, keyword targeting, bids, inventory, pricing, Buy Box, product visibility, and listing optimization. Regular campaign optimization and performance analysis have helped identify opportunities to improve visibility and drive sales across key all products.”
Deepak Rana · Co-founder, DYE EMPEROR · Amazon seller
“The Amazon account management service is excellent. Mr. Shobhnath has managed our account very efficiently and professionally. He has handled the listings, updates, and overall account management perfectly. We are very satisfied with his support and service.”
Ankit Enterprises · Owner, Ankit Gupta · Amazon seller
“We've worked with a few agencies before, but this experience has been much better. Calium Seller Service keeps us informed about every important update and handles our account professionally. Very satisfied with the results. We have seen significant growth in just 2 months. ”
Joginder Yadav · Director, Mogul Exim Private Limited · Amazon seller
“Our Amazon account was suspended for an IPR complaint and we were losing lakhs every week. Calium drafted the Plan of Action, handled every appeal, and we were reinstated in 9 days. They have managed our account ever since.”
Gautam Mittal · Founder, Vaishnavi Exports · Amazon seller
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