Under the Patents Act, 1970, the provision of revocation of a granted patent in public interest is an…

Where the Central Government or State Government is of opinion that a patent or the mode in which it is exercised is prejudicial to the public, it may make a declaration to that effect in the Official Gazette and thereupon the patent shall be deemed to be revoked.

Where the Central Government is of opinion that a patent was wrongly granted overlooking the provisions of section 3 of the Patents Act, it may direct the Controller to revoke the same and make publication to that effect.

Where the High Court is of opinion that a patent or the mode in which it is exercised is mischievous to the State or generally prejudicial to the public, it may, after giving the patentee an opportunity to be heard, make a declaration to that effect in the Official Gazette and thereupon the patent shall be deemed to be revoked.

Where the Central Government is of opinion that a patent or the mode in which it is exercised is mischievous to the State or generally prejudicial to the public, it may, after giving the patentee an opportunity to be heard, make a declaration to that effect in the Official Gazette and thereupon the patent shall be deemed to be revoked.