NEW DELHI: Former Mumbai Police chief Param Bir Singh has been told by the Supreme Court to file a case in the Bombay High Court first on his allegation of corruption against Maharashtra Home Minister Anil Deshmukh. The top court before passing the order today asked Singh why he did not go to the high court before coming to them. When the SC pointed out that the person against whom his petition has been filed was not even made a party to the case, the former Mumbai Police officer’s lawyer, senior advocate Mukul Rohatgi, said the paperwork has been done to make the Nationalist Congress Party leader a party to the case. Singh had made corruption allegations against the Home Minister last week in a letter to Chief Minister Uddhav Thackeray.