Patents Act, 1970
152. Transmission of copies of specifications, etc. and inspection thereof
Copies of all such specifications, drawings and amendments left at the patent office as become open to public inspection under the provisions of this Act, shall be transmitted, as soon as may be, after the printed copies thereof are available, to such authorities as the Central, Government may appoint in this behalf, and shall be open to the inspection of any person at all reasonable times at places to be specified by those authorities and with the approval of the Central Government.