I don't normally chime in on topics like this, but here's my cat among the pigeons: I think it's a great idea! It was implemented in 2011 in Delhi, and it was a really great sight.
I have only ever used films once and had them removed, and in my three cars since then have only run with UV blocker or no film at all (if the car had a light tint no film was used at all).
Films are a really bad traffic hazard as your car effectively becomes an opaque brick and the following car or bike cannot anticipate sudden movement ahead and beyond your vehicle. During rains or in twilight the visibility drops to dangerous levels, and the inside mists over at the slightest increase in humidity. Cars were not designed to have a plastic blanket on the inside. Neither was most traffic or road design. There is the 70% rule, which was impossible to implement as police had no idea how to measure VLT - hence the ban.
Films also do not make a car cooler inside, that is a total myth. Only films certified to cut UV can reduce temperatures inside a parked car when all windows are rolled up (and they don't need to be tinted at all). In moving traffic with an airconditioner running, a thermometer will show you little to no differences in cabin temperature. OTOH, it will take much longer to cool a car with films due to very low thermal conductivity of the plastic material (high heat retention) of films. And they stink when hot, and peel off in unsightly ways. The sole achieved purpose of films is privacy, which they achieve to startling effect.
I don't agree with the reasons for the legislation - women's safety has not improved since the ban is in place - I am all for the ban itself.
