In India, the use of dark tinted films or window glasses on vehicles is regulated by the Motor Vehicles Act, 1988, and subsequent amendments. The law prohibits the use of any material on the windscreen or window glass that obstructs the clear view of the driver or poses a danger to other road users.
The law allows a certain level of tint on the side and rear windows, but it should not exceed the limit specified by the government. The permissible limit for the front windshield is 70% VLT (Visible Light Transmission), while the limit for the side and rear windows is 50% VLT.
If a vehicle is found to have window glasses or films with tint levels exceeding the permissible limit, the driver/owner of the vehicle may be fined. The fine amount may vary from state to state, but it can range from Rs. 500 to Rs. 5,000.