Explore
Every resource founders actually use, in one library.
The essays, videos, podcasts, books and tools behind every answer across eChai's hubs, from starting up to go-to-market, D2C, founder money and AI, each with a note on why it is here.
What founders use most, ranked by how many answers lean on it.
- Spells out the actual cost of treating GST as optional: the penalty math under Section 122, the 18% interest clock, and the... Masters India Article · D2C Penalty for Not Registering or Late Registering Under GST Masters India
- Written by a payment company that onboards thousands of small sellers, so it frames GST registration around the real founder... Razorpay Learn Article · D2C GST Registration for Small Business - Minimum Turnover, New Rules & Benefits Razorpay
- The clearest global explainer of economic nexus, the international equivalent of India's e-commerce mandate: the idea that... Stripe Article · D2C Introduction to US Sales Tax and Economic Nexus Stripe
- Shopify's own 2026 guide to US sales tax makes the same core point GST does for India: the platform will not register or remit... Shopify Article · D2C Ecommerce Sales Tax: Complete Guide for US Businesses (2026) Shopify
- A tax compliance vendor's FAQ that lays out registration timing cleanly: register before you start selling in a jurisdiction,... Avalara Report · D2C Sales Tax Registration FAQ Avalara
- If a D2C brand ever ships direct to Europe, this explains the EU's equivalent to India's threshold question: a EUR 10,000 cross... amavat Article · D2C VAT OSS Threshold Explained: What Happens After EUR 10,000 amavat
- Explains the newest fast track (effective November 2025, Notification 18/2025) that most CA firm websites have not caught up... TaxGuru Report · D2C All About New GST Registration Rule 14A: 3-Day Auto Approval TaxGuru
- Written for the exact reader of this question, the D2C founder about to sell on a marketplace, and confirms Amazon's own... Amazon Seller Blog (sell.amazon.in) Article · D2C Documents Required for Goods and Services Tax (GST) Registration Amazon
- Address proof is the single most common reason a solo application stalls; this walks through reading a REG-03 clarification... myHQ Blog Article · D2C GST Registration Rejected? Complete Fix and Reapply Guide myHQ
- Worth bookmarking before you start: the actual toll free number and grievance channels for when the portal itself breaks, an... ClearTax Article · D2C GST Helpline Number and Email ID ClearTax
- If you want the whole GST landscape in one sitting rather than piecing it together from blog posts, this is a short, current,... Amazon Kindle Book · D2C GST for Small Business and Startups: Essential Compliance and Practical Strategies for MSMEs in India Akhila S
- GST rules change often, Rule 14A itself only launched in November 2025, so subscribing keeps you from registering under a... Substack Newsletter · D2C GST News GST News
- Razorpay writes this for the same founders opening a payment gateway account right after GST registration, so the document set... Razorpay Learn Article · D2C Documents Required for GST Registration: A Checklist Razorpay
- One of the more complete entity-by-entity breakdowns available, useful if you are still deciding between registering as a... IndiaFilings Article · D2C GST Registration Documents Required for Businesses IndiaFilings
- Written specifically for online sellers, this covers the document gap founders discover only after they are already live, that... ComplyLocal Article · D2C Additional Place of Business (APOB) in GST: Add Amazon and Flipkart Warehouses ComplyLocal
- Many D2C brands incorporate as an LLP before scaling to a private limited company, and the document set for an LLP (LLP... myHQ Article · D2C GST Registration for LLP: Step-by-Step Guide (2026) myHQ
- Written by a business banking platform that watches founders go through registration constantly, this is a practical... OPEN Money Blog Article · D2C GST Registration: 10 Common Issues and Fixes Open Financial Technologies
- A tax practitioner's plain-language breakdown of the same CBIC instruction on the day it dropped, useful as a five-minute... X (FinTaxPro) Thread · D2C CBIC issues Instruction No. 03/2025-GST to streamline GST registration processing FinTaxPro
- Once your GSTIN comes through, this is the single-volume reference Indian tax professionals actually keep on their desk, worth... Taxmann Book · D2C Taxmann's GST Ready Reckoner V. S. Datey
- The government's own FAQ on the composition levy, straight from the department that writes the rules. Use it to check any... CBIC (Central Board of Indirect Taxes and Customs) Report · D2C Frequently Asked Questions on Composition Levy CBIC (Central Board of Indirect Taxes and Customs)
- The actual CGST Rules governing composition, not a third party paraphrase. A five minute read before you trust any summary... CBIC (Central Board of Indirect Taxes and Customs) Article · D2C Composition Rules CBIC (Central Board of Indirect Taxes and Customs)
- India's most widely used tax platform, kept current, and the cleanest single reference for exact rates and turnover limits... ClearTax Article · D2C GST Composition Scheme: Rules, Turnover Limit, Rate, Benefits ClearTax
- Goes straight at the exact question a maker selling online is asking: does composition even work if I'm on a marketplace, and... Busy.in Article · D2C GST Composition Scheme Rules for E-commerce Sellers and Online Retailers Busy.in
- Unpacks the exact Section 52 mechanism our short answer leans on, so you understand why marketplaces withhold a cut and how... GST Gyaan Article · D2C Guide on Section 52 of the CGST Act: Collection of Tax at Source (TCS) under GST GST Gyaan
The hubs
Starting Up
Find an idea, validate it, build, and land your first customers.
GTM
Go-to-market, from breaking in to how the best teams do it.
D2C
Building a direct-to-consumer brand, India-first.
Wealth
Paying yourself, ESOPs, secondaries, and de-risking founder wealth.
How Founders Use AI
How founders actually put AI to work, mapped topic by topic.
Glossary
Plain-language definitions of the startup and VC terms you'll hit.
eChai Partner Brands
The partnership →