Section 548(7) in Greater Hyderabad Municipal Corporation Act, 1955
(7)Any certificate that the animal is fit for slaughter granted by any Veterinary Officer before the commencement of this Act and any fee realised therefor, within the limits of the City shall, notwithstanding there being no specific provision in respect thereof in principal Act, or in any other law for the time being in force, be deemed always to have been validly granted and realised as if this Act were in force on the date on which such certificate was granted or such fee was realised and shall not be questioned in any Court of Law.]Prevention of spread of infectious diseases.