Telegu Desam Party (TDP) leader Varla Ramaiah has informed the Supreme Court that Andhra Pradesh (AP) Chief Minister YS Jagan Mohan Reddy is conducting a fishing and roving expedition in the alleged Amaravati land scam to foist false cases on the members of the former Chandrababu Naidu led government as payback for holding Reddy in jail for 16 months.