Section 47(5) in The West Bengal Motor Vehicles Rules, 1989
(5)Upon receipt of the copies of the photograph as provided in sub-rule (3), the licensing authority shall remove the old photograph from the conductor's licence and affix thereto one copy of the new photograph duly sealed and return the conductor's licence to the applicant and shall, if he is not the licensing authority by whom the conductor's licence was issued, forward the second copy of the photograph to the authority which issued the licence :Provided that if the holder of the conductor's licence so desires, the licensing authority shall issue a duplicate conductor licence with a new photograph affixed thereto and shall destroy the original licence of the conductor. In such a case if the licensing authority is not the authority by whom the conductor's licence was issued, he shall inform the original licensing authority.
