Under Section 157A(b) of the Patents Act, 1970, in the interest of the security of India, the Central…

Refuse to publish the application, but may not revoke a patent once granted

Take any action, including revocation of any patent, by notification in the Official Gazette

Revoke a patent, but only through a petition to the High Court under section 64

Acquire the patent compulsorily, on paying compensation fixed by the Controller