As per your query posted on our website CarDekho.com for the service time and expense over Nissan Micra.
A service of Nissan Micra can cost an expenditure of Rs. 1800-2000 approx variable.The time that it may take depends upon the traffic in service centre.
We encounter similar question many times, the easiest way to increase the mileage is to keep your car healthy. Keep the tyre pressure proper, air filter clean, always follow speed limits and turn off your engine on traffic lights. Find more tricks here- Please find the details Chevrolet service centers here- http://forum.cardekho.com/topic/356-how-to-increase-mileage-of-your-car-tips/