The country’s demat account tally topped the 100 million-mark for the first time, in August. Over 2.2 million new accounts -- most in four months -- were opened last month, taking the cumulative figure to 100.5 million, according to data released by depository firms National Securities Depository Limited (NDSL) and Central Depository Services (CDSL). India’s demat account tally was 40.9 million in March 2020 just before the outbreak of Covid-19 in the country.