about a month ago, he charged 250 rupees fo a "tune-up" which includes the cleaning of the spark plugs and the air filter and the cng adjustment. he would ask to change the plugs and filter if needed.
the address is shop # b-1025 ( near kandan cng ), commercial market, satellite town.
if you decide to pay him a visit DO note your mileage before and after the tune-up and note the increment !