Some areas like Delhi and Chandigarh also had a road safety drive a few years back when cars were pulled over to remove illegal tinting on windows. Some VIP cars are allowed to be painted black for security reasons, but this is governed by specific policies.
It should be noted that tinting is not strictly prohibited in public owned vehicles and there are some very simple rules for this. But first, what is tinting on windows? It is reducing the transmission of light by only blocking the rays of the sun. Many cars come with factory tinting on the specs. But these do follow the rules in place.
According to the Motor Vehicle Rules 1989, there should be at least 50 per cent visual light transmission in the windows and at least 70 per cent visual light transmission in the front windscreen and rear glass. RTO-approved dark green uv Cut glass is a possible option.
This restriction includes sun shades and curtains. The bottom line is anything that obstructs the view from inside the car and the view inside the car can also be a problem for the traffic police.