Section 58(4) in The West Bengal Motor Vehicles Rules, 1989
(4)Any other person finding a certificate of fitness shall deliver it to the nearest police station or nearest registering authority. The Officer-in-charge of the police station on receipt of the certificate of fitness shall immediately forward it to the nearest registering authority. The registering authority shall restore the certificate of fitness to the holder of the certificate of fitness in case the duplicate certificate of fitness has not been issued and shall substitute it for the duplicate in case such a duplicate has already been issued.
