Section 129 Motor Vehicles Act '88
Wearing of Protective Headgear: Every person driving or riding otherwise than in a side car, on a motor cycle of any class or descripttion, shall, while in a public place, wear protective headgear conforming to the standards of Bureau of Indian Standards: Provided that the provisions of this section shall not apply to a person who is a sikh, if he is, while driving or riding on the motorcycle, in a public place, wearing a turban: Provided further that the state government may, by such rules, provide for such exceptions as it may think fit.
What is the rational behind this exemption ?