Troubles mounted for Karnataka Lokayukta Bhaskar Rao as Opposition parties on Friday initiated the process for moving a motion in the Assembly to remove the ombudsman who is immersed in row over an alleged bribery scandal involving his son. Escalating their campaign, BJP and JDS on Friday submitted a petition to Speaker <g data-gr-id="10" data-style="color: #3b3b3b; font-size: 11px;">Kagodu</g> Thimmappa for moving a motion to remove Rao, whose son has been accused of being part of an alleged extortion racket along with some Lokayukta officials and agents.