This proprietary dataset is from the National Securities Depository Limited (NSDL), with prior approval of the capital market regulator, Securities and Exchange Board of India. The data covers about 12,350 securities in 2004 to almost 23,000 in 2011, and records trading information for 11.6 million individuals. In terms of equities, this data set covers 4533 equities in 2004 to 7735 in 2012. The data covers about 60% of total trading accounts in India and 80% of asset value of the Indian stock market.