Section 30 of the Indian Patents Act 1970
Section 30 of the Indian Patents Act 1970 is about Anticipation by previous communication to Government. It is under CHAPTER VI of the Act. CHAPTER VI is titled ANTICIPATION.
An invention claimed in a complete specification shall not be deemed to have been anticipated by reason only of the communication of the invention to the Government or to any person authorised by the Government to investigate the invention or its merits, or of anything done, in consequence of such a communication, for the purpose of the investigation.
See also:
Section 29 Indian Patents Act 1970 (Anticipation by previous publication.)