Uber India — Amount Deducted before Booking a cab

Address:	Hyderabad, Andhra Pradesh, 500055
Website:	uber.com

I have tried to book a cab from Kacheguda to Suchitra, Hyderabad. While booking, it showed me estimated amount as Rs 168.00. I asked me to add amount for booking, i then added Rs 200.00. Now when i tried to book, it again asks me to add money to wallet. I then checked my paytm wallet and saw Rs 168.00 deducted from Uber and shows balance Rs 32.00. I didn't even book the cab, why my amount was deducted?
Why uber does not allow cash option? What wrong with uber app? It does not even show the balance in the app?

I want my amount to be credited back.