I want to buy a bike in 150 CC segment with a good milage,after sales service & Low maintanence cost.Suggest me soon please.

Hi, its better to go for the new Honda Unicorn which is the best bike in the 150cc bike segment. The Unicorn has a reliable 150cc, 4-stroke, Air-Cooled, OHC, Single Cylinder engine with 13.3 bhp @ 8000 rpm of power and has 13 Nm @ 5500 rpm of torque. The new Honda Unicorn has an overall mileage of around 52 to 58 kmpl depending upon the riding conditions and style. The Honda Unicorn with reliable engine and quality body parts, good mileage, decent power, very good comfort in riding and handling makes it the best all rounder bike with true value for money.
You can also go for the stylish reliable Yamaha SZ-X. The bike has reliable 153 cc, Air cooled, 4-stroke, SOHC, 2-Valve, Single cylinder, CDi engine with 12.1 hp @ 7500 rpm of power and has 12.8 Nm @ 4500 rpm of torque. The Yamaha SZ-X gives mileage of around 52 to 60 kmpl depending upon the riding style and conditions and has good comfort in riding and handling. So first test ride both the bikes and take a wise decision.

Go for Hero Motocorp Hunk.