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 help manufacturers, brand owners and resellers sell successfully on Amazon.in and other Indian marketplaces through six core services described below.

01

Amazon Account Management

End-to-end daily operation of your Amazon.in Seller Central account by a dedicated account manager.

How we deliver

  1. 01Discovery call & account audit
  2. 0230-60-90 day growth plan
  3. 03Daily operations & weekly reporting
  4. 04Monthly review & scale

Ideal for: Manufacturers, brand owners, distributors and D2C brands selling or planning to sell on Amazon.in who want professional, accountable operations.

Request this service

What the service entails

Our Amazon Account Management service is a fully managed operations desk for your Seller Central account. A dedicated account manager, supported by our cataloging, advertising and compliance specialists, runs the account day to day so that you can focus on sourcing, manufacturing and brand building.

We start with a complete account audit (performance metrics, catalog quality, pricing, inventory health, advertising efficiency and policy compliance) and convert it into a 30-60-90 day plan with measurable KPIs. From there, we manage orders, inventory, customer communication, promotions and account health, and report progress to you every week.

Core offerings

  • Seller account registration, GST/PAN/bank verification and category approvals (ungating)
  • Brand Registry enrolment and brand protection set-up
  • Daily order processing, Easy Ship / FBA shipment creation and inventory replenishment planning
  • Buyer messages, A-to-Z claims, returns and refunds handled within Amazon's SLA
  • Pricing, Lightning Deals, coupons and Prime Day / festive event planning
  • Account Health monitoring: ODR, Late Shipment Rate, Cancellation Rate, Valid Tracking Rate and policy notifications
  • Weekly performance report covering sales, sessions, conversion, ad spend and next actions

Benefits to your business

  • A single accountable owner for your Amazon business instead of several freelancers
  • Healthy account metrics that keep Buy Box eligibility and avoid suspensions
  • Faster growth through structured deal calendars and inventory planning
  • Complete transparency with weekly written reporting and monthly review calls

Our expertise

  • Managing Amazon.in seller accounts since 2017 across 5000+ sellers in apparel, home, kitchen, beauty, grocery, electronics accessories and industrial supplies
  • Deep familiarity with Seller Central tools: Manage Inventory, Manage Orders, Reports, Brand Registry, Account Health dashboard and Performance Notifications
  • Operating procedures aligned to Amazon Seller Code of Conduct and Selling Policies
02

Advertising Optimization (Amazon Ads / PPC)

Structured Sponsored Products, Sponsored Brands and Sponsored Display campaigns engineered for lower ACoS and higher organic rank.

How we deliver

  1. 01Ads audit & goal setting (target ACoS / TACoS)
  2. 02Campaign restructure & launch
  3. 03Weekly optimisation loop
  4. 04Monthly profitability review

Ideal for: Sellers spending ₹25,000+ per month on Amazon Ads, or brands launching new ASINs that need ranking velocity.

Request this service

What the service entails

Our Advertising Optimization service plans, launches and continuously optimises Amazon Ads campaigns so that every rupee of ad spend produces profitable, measurable sales. We manage Sponsored Products, Sponsored Brands (including video), Sponsored Display and Amazon Coupons/Deals as one integrated growth engine.

Every account is rebuilt on a proven campaign architecture — Auto (discovery), Broad (research), Exact (harvest) and Product Targeting (defence) — and then managed through a weekly optimisation loop: search-term harvesting, negative keyword pruning, bid adjustments by placement, budget pacing and creative refresh.

Core offerings

  • Advertising audit: wasted spend, ACoS by campaign, keyword overlap and missed opportunities
  • Keyword research using Brand Analytics, search-term reports and competitor ASIN analysis
  • Campaign architecture build-out for Sponsored Products, Brands, Display and Video
  • Weekly bid, budget, placement and negative-keyword optimisation
  • Brand Store design and Sponsored Brands creative (headline, lifestyle image, video)
  • Deal, coupon and Prime Day / Great Indian Festival event advertising plans
  • Monthly report: spend, sales, ACoS/TACoS, impression share, organic rank movement

Benefits to your business

  • Median ACoS reduction from 34% to 20% within 8 weeks across accounts we restructured in 2025, with sales rising 22%
  • Advertising that also lifts organic ranking, reducing dependence on paid traffic over time
  • Clear profitability tracking through TACoS and contribution-margin reporting
  • No long-term lock-in: month-to-month retainers tied to reporting

Our expertise

  • Amazon Ads campaign management for 5000+ Amazon.in sellers since 2017, across Sponsored Products, Brands and Display
  • Team trained on Amazon Ads learning console curriculum and Amazon Seller University
  • Proprietary weekly 'harvest loop' SOP and bid rulebook documented for every client account
03

Seller Training & Consulting

Hands-on Seller Central, Amazon Ads and compliance training for founders and in-house e-commerce teams.

How we deliver

  1. 01Skill assessment call
  2. 02Curriculum & schedule agreed
  3. 03Live training on your own account
  4. 04SOP hand-over & 30-day support

Ideal for: New sellers, MSMEs, exporters entering e-commerce, and companies building an internal marketplace team.

Request this service

What the service entails

Our Training service equips business owners and their staff to operate Amazon.in and other marketplaces confidently. Programmes are delivered live (online or at our New Delhi office) in Hindi and English, using the participant's own Seller Central account wherever possible so learning is immediately applicable.

We offer a structured beginner-to-advanced curriculum as well as custom workshops for existing teams — for example, an advertising deep-dive for a marketing executive or an account-health masterclass for an operations team. Every participant receives SOP documents, checklists and 30 days of post-training query support.

Core offerings

  • Amazon Seller Fundamentals (2 days): registration, GST, categories, listing basics, shipping options, fees and payments
  • Listing & Cataloging Workshop: keyword research, title/bullet writing, A+ Content, image guidelines, bulk flat files
  • Amazon Ads Masterclass: campaign types, structure, bidding, reports and optimisation routines
  • Account Health & Compliance: performance metrics, policy violations, Plans of Action and appeal writing
  • FBA & Inventory Planning: shipment creation, storage fees, IPI score, stranded inventory, removals
  • Multi-marketplace module: Flipkart, Meesho, Myntra, JioMart onboarding and catalog reuse
  • Custom corporate training for in-house e-commerce teams, with SOP hand-over

Benefits to your business

  • Build in-house capability and reduce dependence on external agencies
  • Avoid costly beginner mistakes: policy violations, wrong category selection, mis-priced shipping
  • Practical, account-specific learning rather than generic theory
  • Post-training support and documented SOPs the team can follow

Our expertise

  • Trainers are working account managers who operate live Amazon.in seller accounts every day
  • Curriculum refined since 2017 across hundreds of sellers, MSME groups and corporate teams
  • Delivered in Hindi and English, online or in person at our Laxmi Nagar, New Delhi office
04

Cataloging & Product Listing

Compliant, keyword-optimised product listings and bulk catalog uploads that get approved the first time.

How we deliver

  1. 01Product data & image collection
  2. 02Keyword research & copywriting
  3. 03Bulk upload & QA
  4. 04Live listing review & optimisation

Ideal for: Sellers launching new products, migrating catalogs from other marketplaces, or fixing poor-performing or suppressed listings.

Request this service

What the service entails

Our Cataloging service creates and maintains high-quality product detail pages on Amazon.in and other marketplaces. We research the keywords buyers actually use, write compliant titles, bullet points and descriptions, prepare images to Amazon's technical standards and upload catalogs in bulk via category flat files.

For brand-registered sellers we design A+ Content (Enhanced Brand Content) and Brand Stores. We also fix existing catalogs — suppressed listings, variation (parent/child) errors, wrong browse nodes, duplicate ASINs and image-compliance rejections — and maintain a product information management (PIM) sheet as the single source of truth for every SKU.

Core offerings

  • 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 (white background, 1000px+, 85% frame fill) and infographic creation
  • Bulk listing creation through category-specific flat files and inventory loader templates
  • Variation (size/colour) 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 rates through clear, benefit-led, keyword-rich content
  • Fewer listing rejections and suppressions, saving weeks of back-and-forth with Seller Support
  • Consistent brand presentation across Amazon, Flipkart, Meesho, Myntra and JioMart
  • Faster launches: standard catalogs of up to 100 SKUs go live within 7–10 working days

Our expertise

  • Catalogs created across 5000+ Amazon.in seller accounts since 2017, in categories from apparel and home to grocery 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 team
05

Taxes, GST & Marketplace Compliance

GST registration, marketplace tax settings, TCS/TDS reconciliation and monthly filings for e-commerce sellers.

How we deliver

  1. 01Compliance review of registrations & tax settings
  2. 02SKU-level HSN/GST mapping
  3. 03Monthly reconciliation & filing
  4. 04Quarterly compliance report

Ideal for: Marketplace sellers who want tax, reconciliation and marketplace compliance handled by one accountable team.

Request this service

What the service entails

Selling online in India brings specific tax obligations: GST registration (mandatory for most marketplace sellers), correct HSN codes and tax rates on every listing, reconciliation of the TCS deducted by marketplaces under GST and the TDS deducted under Section 194-O, and monthly/quarterly return filing. Our Taxes & Compliance service handles these end to end in coordination with our empanelled chartered accountants.

We also configure Seller Central for tax: Product Tax Codes, GSTIN on invoices, Amazon Tax Invoice settings, and state-wise registrations for sellers using FBA warehouses in multiple states (APOB/additional place of business).

Core offerings

  • New GST registration and additional place of business (APOB) registrations for FBA fulfilment centres
  • HSN code mapping and correct GST rate assignment for every SKU
  • Seller Central tax settings: Product Tax Codes, invoice configuration, GSTIN display
  • Monthly reconciliation of marketplace 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 of marketplace tax queries, invoice mismatches and GST notices related to e-commerce sales
  • Payment reconciliation: settlements vs. orders, fee verification and reimbursement claims for lost/damaged FBA inventory

Benefits to your business

  • Full input-tax credit on marketplace fees and correct TCS/TDS credits claimed every month
  • No blocked payouts or listing removals due to GST mismatches or missing state registrations
  • One team that understands both the marketplace reports and the GST portal
  • Reimbursements recovered for FBA inventory discrepancies that most sellers never claim

Our expertise

  • Reconciling Amazon, Flipkart and Meesho settlement reports for sellers since 2017
  • Work delivered with empanelled, practising chartered accountants; statutory filings are signed off by a CA
  • Experience with multi-state FBA registrations and e-commerce specific GST provisions (Sections 52 GST Act, 194-O IT Act)
06

Account Health & Seller Reinstatement

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

How we deliver

  1. 01Notification review & diagnosis
  2. 02Evidence collection
  3. 03POA drafting & submission
  4. 04Appeal follow-up & prevention SOP

Ideal for: Sellers with account-health warnings, deactivated ASINs or suspended accounts, and brands wanting proactive protection.

Request this service

What the service entails

Our Account Health & Reinstatement service protects the asset your business depends on: the seller account itself. Proactively, we monitor performance metrics and policy notifications and fix issues before they escalate. Reactively, when an account or ASIN is deactivated, we diagnose the root cause and draft a Plan of Action (POA) with supporting documents, then manage every round of appeal until reinstatement.

Core offerings

  • 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: root cause, corrective actions, preventive measures and evidence pack
  • Appeal management and follow-up with Seller Performance / Account Health Support
  • Preventive SOPs: supplier invoice verification, listing compliance checks, customer-service templates

Benefits to your business

  • Most well-drafted appeals we submit receive a response within 3–9 business days
  • Reduced recurrence through documented preventive processes
  • Business continuity: income protected during the appeal process wherever ASIN-level selling continues

Our expertise

  • Reinstatement casework for Amazon.in sellers since 2017 across every major suspension category
  • Appeals written to Amazon's stated POA structure with organised evidence
Credentials

Who you are working with.

Legal entity
Calium Technologies Private Limited (brand: Calium Seller Services), a company registered in India
In business since
2017 — 9 years of e-commerce operations for Indian marketplace sellers
Sellers served
5000+ Amazon.in seller accounts and 2000+ Flipkart seller accounts managed or onboarded
Marketplaces
Amazon, Flipkart, Meesho, Myntra, Ajio, JioMart, Snapdeal
Head office
A-42, 3rd Floor, Gurunanakpura, Laxmi Nagar, Delhi 110092, India
Team
Account managers, cataloging & image specialists, advertising analysts, compliance/appeals writers and empanelled chartered accountants
Reporting
Weekly written performance reports and monthly review calls for every managed account
Contact
+91 78273 04742 · info@calium.in · www.calium.in
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
Get started

Book a free account audit with a consultant.

Request free audit +91 78273 04742
Chat on WhatsApp