Uber decides to cut down 10% for fares in Mumbai to attract customers and also because the drivers might get more business.
Here is a comparison of approximate fares before and after cut down
Colaba-Worli (Before - 187; After - 165)
Powai- Dadar (Before - 285; After - 245)
BKC- Airport (Before - 135; After - 121)
Drivers get 2000 rs incentive if they complete certain amount of rides in 48 hours.
This cut down has been effective from 03-Sept-18 on wards.