"Adopting this modus operandi, the said person contacted Aditi Singh, wife of Shivinder Mohan Singh, by impersonating himself as Union home secretary, Union law secretary, officer from prime ministers office (PMO) and other junior officials and extorted more than Rs 200 crore from her over a period of 1 year on the pretext of contribution to party funds. The said person was conman Sukesh Chandrasekhar who was running his illegal extortion business from central jail in Delhi (Tihar jail) in connivance with jail officials," the ED said.