@OP
Today I visited Sultan-ka-khu and inquired about the trunks.
The asking price for the complete trunk with glass and trunk garnish lights was 5~7k depending on the condition of the trunk but you can always negotiate.
The price for the rear glass with defogger was around 1.6k
The price of the rear trunk without glass and rear garnish lights was aound 4.5k
I visited 3 shops and there was a price difference of around Rs.500~1000.
I also took 2~3 pictures of the trunk but dont know they dissapeared somewhere during transfering them to my PC. 
