[Resolved]  Hyundai Motor India — I20 active sx has not given proper average

Address:	Gorakhpur, Uttar Pradesh, 273001
Website:	Hundai

I have I20 active sx car.purchased it mb hundai gulhariya medical college road gorakhpur .At that time seller said it will give you milage 20 per liter but after fue month I have not got that response. It gives 12/13 pr litre only.about this matter I have claimed many time on dealer service centre.they told that it will give you that fuel month again and again...but still Mar car average is only 12/13 pr litre. ...
So please tell me when and how I will gate 20 average pr litre.