i also wanted something like this 
well i always talk in a proper way wid them,but "agey se phail hi jate hain" like today instead of talking to me he went to my dad to say that remove the rear one n reduce front one lol
i wont go for window tints,i have curtains on all,will use those for now,if any1 removes the tints then will go for the % u mentioned but till then will hope for the best 
normally i dont have to go anywhere so no check posts for me,its only sometimes like today had to pass through 3 check posts,when i was at 9th avenue entrance i just got out wid shezore on my side 
i didnt changed my number plates,they are in default design as i got them,no muffler exhaust loud sound stuff either,always carry attested reg copy which they themself once told about to carry
they just wanna either remove it or want chai pani instead but apologize....never
night time driving is such a breeze now wid this tint at front,no annoying lights 
lucky me,when i was coming from state bank side,ITP officer was right at check post,he saw me but didnt stopped even when i was rushing to get away from him lol
mine was also faded at the back,got that removed n got fresh again
dil ki baat kr di 
but u need whole car for that not just back n front 
koi ni pardey hain na 
in which city u asked them?
ask ITP officer they'll say u'll be challaned even for 0% tint