It is normal for a bike to give a mileage of 35 kmpl in city. However, there are some things that you can do to help increase the mileage of your Apache 160 4V BS6. Make sure to keep your tires inflated to the correct pressure, as this can affect the mileage. Also, you should try to follow the manufacturer's recommended maintenance schedule, as this will help keep your bike running smoothly. Finally, make sure to keep your speed at a reasonable level, as excessive acceleration and deceleration can decrease fuel efficiency. Hopefully, following these tips will help you get the most out of your bike.