Cool Cab, Mumbai — Overcharging taxi fare, not using meter

Address:

Mumbai City, Maharashtra

Took Cool cab taxi no. MH02 BQ 2490 from Grand Hyatt Hotel in Santacruz, Mumbai to Goregaon East at 8.30 pm on 31st JUly 2015. Taxi refused to charge by meter. I agreed to the Rs. 500 charge (Uber charges 250, but I was unable to book one). On reaching destination driver returned only 300 out of the 1000 I gave him saying I had made a detour on the way. This was true but it was less that 500 meters! I argued took his photo and car number. He then returned 100 but sped away with the balance. While the amount is not much I would like to know what I can do to bring him to book and fine him. Please advice.