Mahindra Two Wheelers — Mileage is very low

Address:

411030

I am having Rodeo two wheeler purchased in 2010-11. The vehicle is smooth in running and maintenance is low. Rodeo is very good since I purchased it. The only problem is millage. Presently it gives only 15-20 k.m. per litre. My servicing person also says that this scooter will not give more than 25 k.m. per liter. I wish to keep the vehicle considering its smooth running and low noise etc. I request to provide me technical help how the millage can be increased.
My email is [protected]@vsnl.com and phone [protected]