Markets regulator Securities and Exchange Board of India (SEBI) directed National Stock Exchange (NSE) to disgorge more than ₹625 crore in the case of misuse of its co-location facility. SEBI has been probing alleged lapses in high-frequency trading offered through NSE's co-location facility. National Stock Exchange (NSE) to pay more than ₹625 crore along with interest calculated at the rate of 12% per annum from April 1, 2014 onwards to the Investor Protection and Education Fund (IPEF) created by SEBI. The National Stock Exchange (NSE) has been prohibited from accessing the securities market directly or indirectly for six months.