Answer:
Typically, invoice, bill/receipt, agreement, warranty card, email correspondence or WhatsApp chat with the seller/service provider, call records, bank passbook or payment proof, bank statement, photographs, legal notice (if sent), postal receipt of legal notice, reply letter from the company, expert opinion report (if any, like an engineering report for building defects), your ID proof and affidavit.
Advocate BK Singh can go through your documents and prepare an evidence file for the consumer forum.
By Advocate BK Singh
Supreme Court | High Court | Tribunals