Ex-NSE chief Chitra Ramakrishna interrogated over sharing information with Himalayan guru

An FIR was registered in the case earlier but after new facts surfaced, Ramkrishna was questioned, reports said.

The CBI has also posted notices against Ramkrishna, former COO Anand Subramaniam, and her predecessor Ravi Narayan, to stop them from leaving the country.

Ramkrishna was the CEO and Managing Director of the National Stock Exchange from 2013 to 2016 before she quit citing "personal reasons".

She is under probe for an alleged "glaring breach" of regulations involving sharing confidential financial data with a 'yogi' living in the Himalayas.

The 'tick by tick' case was registered against OPG Securities; its Managing Director, Sanjay Gupta; Ajay Shah, who helped develop the software.

It also booked unknown officials from the NSE and regulatory body SEBI for alleged stock market manipulation from 2010 to 2014.

It has been alleged that Sanjay Gupta had unfair access to this feed and this enabled his company, OPG Security Pvt Ltd, to get access to financial data a split second faster than his rivals.

Ramakrishna and others were searched by the Income Tax Department in connection with the allegations that she shared the bourse's financial projections, business plans and board agenda with a spiritual guru.

The guru was running the exchange and Ramkrishna was "a puppet", SEBI has claimed.

Ramkrishna has, however, claimed the information-sharing did not compromise NSE operations.