Whoever forges a document, purporting to be a record or proceeding of or in a Court of Justice, or a register of birth, baptism, marriage or burial, or a register kept by a public servant as such, or a certificate or document purporting to be made by a public servant in his official capacity, or an authority to institute or defend a suit, or to take any proceedings therein, or to confess judgment, or a power of attorney, shall be punished with imprisonment of either description for a term which may extend to seven years, and shall also be liable to fine.