You are in Noida! Try to find the largest Photo Printing shop (Great India Shopping place/Atta Mkt/Gulmohar Mkt) who print posters/t-shirt/Mug etc.
Ask them if they print on 'Transparent' sheet if they dont understand 'Decal' . Here in Bangalore, 'Printo' prints Rs 75/Sq Feet , with minimum of 5 sq feet order.
http://www.printo.in/storelocator.aspSorry they are only in Hyd/BLR.
If you can do with MonoChrome stickers as in Cars (kind of color tape), contact some Number plate guy and they would tell the shop. You give them Coral Draw file and they would 'Cut' the sticker.
all the best!