In FY24, a significant majority of India’s biggest listed companies entrusted their financial scrutiny to the six leading audit firms known as the ‘Big 6.’ These firms, namely Deloitte, EY, Grant Thornton, KPMG, MSKA & Associates, and PwC, collectively handled a substantial portion of the audits for companies listed on the Nifty 500 and NSE indices. Their dominance has grown in recent years, with the Big 6 now overseeing 66% of Nifty 500 companies and 32.5% of all NSE-listed companies.