.No suit, prosecution or other legal proceeding shall lie against the Central Government or a State Government or any officer or authority of the Central Government or State Government or any other authority on whom powers have been conferred under this Act, for anything which is in good faith done or purported to be done in pursuance of this Act:

Provided that no suit, prosecution or other legal proceedings shall lie against any serving member or retired member of the armed forces or other para-military forces in respect of any action taken or purported to be taken by him in good faith, in the course of any operation directed towards combating terrorism.