New Delhi, March 4 -- The sharp selloff in the Indian stock market has significantly eroded the market capitalisation (m-cap) of major Indian business groups over the past five months.

According to data from Capitalmarket, an equity research platform, some of the top private business groups of India Inc. cumulatively lost nearly Rs.28 lakh crore in the current market crash since October 1.

The total market capitalization of BSE-listed firms has declined by approximately Rs.90 lakh crore, dropping from Rs.474 lakh crore on September 30 last year to Rs.384 lakh crore on March 3 this year.

Data show Tata Group stocks lost over Rs.7.70 lakh crore in market capitalisation between October 1 and March 3. Adani Group stocks followed with a dec...