The Central Bureau of Investigation on Friday issued a lookout circular against Chitra Ramkrishna, the former CEO of the National Stock Exchange over alleged irregularities, news agency PTI reported. This comes a day after the income tax department raided the premises of Ramkrishna as part of a tax evasion investigation. As the agency reported, look-out circulars have been issued against another former CEO Ravi Narain and former COO Anand Subramanian.
