GST Registration Checklist for Mumbai Businesses
Who needs GST, thresholds in Maharashtra, documents and common rejection reasons.

Who must register?
Suppliers of goods above ₹40 lakh and services above ₹20 lakh annual turnover, interstate suppliers, and e-commerce sellers must register regardless of turnover in most cases.
Documents
PAN, Aadhaar, photograph, business address proof, and a bank statement or cancelled cheque.
Avoid rejections
Mismatched addresses, unclear rent agreements and wrong HSN/SAC codes are the most common reasons for queries. A CA review avoids delays.