Currently there are 2 Nissan Dealers in Punjab, one in Jalandhar and the other in Mohali.
G.T. Road, Adjacent to Ansal Mall, Near Jalandhar Octroi, Jalandhar - 144 005
0181-6600400 / 9872006000
C-19, Industrial Area, Phase I, SAS Nagar, Mohali, Punjab 160055
0172 - 3057700 / 24
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/
There is not any special petrol recommended for NIssan Micra. You can use simple unleaded petrol in it. However, you can use Speed, Power or Extra premium petrol for better performance of the vehicle.