NSE

 Set up to ensure there is no monopoly and corruption at BSE a  competitive exchanges was set up, and it was turning out to be the only default exchange. Thus funnelling all  Indian traders/investors towards NSE.

They then instituted co-location of servers and created a way to front run all high volume trades. Thus along with HFT Algos they could skim the cream out of the daily volume of NSE Trades.

Thus they created a Kamdhenu for people in the Finance Ministry and Bureaucracy along with NSE top brass. They  enjoyed a slice of the pie. The daily volume of NSE is in excess of Rs. 60,000 crores. A 5% of the daily volume they made about Rs. 3, 000 crores/day!!! Which tanslates to Rs. 66,000 crores a month and about Rs. 700,000 crores a year!!! 

Looks like some of the biggest people in India across UPA and NDA are involved and everyone made a lot of money. They ensured that Regional Stock Exchanges were closed.

Now is there monopoly or healthy competition?