Former NSE Group Operating Officer Anand Subramanian, who has been arrested by the CBI, is the 'Himalayan yogi' who guided former CEO Chitra Ramkrishna, as per CBI sources. The email address ‘rigyajursama@outlook.com’, through which Chitra shared information with the 'yogi', was created by Subramanian, sources added. Subramanian was offered ₹1.68 crore to join NSE.