I was in India for a few months and this happened to me almost daily, Sometimes 3-4 Drivers would cancel on me, They would call, ask location and then cancel. Another Issue in India was that the driver expect to pay you in cash.( In India you can choose to pay in cash after the trip), so if you were paying with a CC like I was doing, they would again cancel. Uber Competitor Ola, go so sick of this that they are now showing the driver the destination and mode of payment during the booking itself.