Section 257(3) in The West Bengal Motor Vehicles Rules, 1989
(3)Brakes. - Subject to the provisions of rule 97 of the Central Motor Vehicles Rules, 1989, and save as provided in sub-rule (2), every trailer exceeding 499 kilograms in weight laden shall have an efficient braking system, the brakes being capable of application instantly when it is drawn, -(i)in the case of a trailer having not more than two axles, to at least all the wheels of one axle; or(ii)in the case of a trailer having more than two axles, to at least all the wheels of two axles.
