New Delhi, Nov 29 (ANI): Politicos on Saturday demanded thorough probe after a suspected Islamic State militant was detained from Mumbai airport, adding the BJP-led government should not be witch hunting. NCP leader Majid Memon said that such persons who return home should not be treated in a harsh way like the NIA did. Congress leader Manish Tewari said that religious politics practiced by the BJP gave fodder to youths to join extremist organisations. Meanwhile, Samajwadi Party leader Naresh Agarwal said that investigation should be done as to why he went to Iraq.