Nice Work Suganth!
I would like one more feature handy in this app because I think an app targeted at Indian audience should definitely have a rate calculator in built.
The rates for rental will be subject to a lot of conditions. I have seen car rental companies charging users for driving beyond the specified quota of kilometres. So any potential customer would want to estimate the total cost (including taxes and losses and what not, of course!) just before making the booking.
A nice, affirming UI, that positively encourages the user to be cost aware before making the booking will be super cool. The Indian audience will adore such an app that goes hand in hand with their tastes when it comes to cost management.