Nissan Motors — not giving assured mileage

Address:

620021

I purchased nissan make micra active model car on 15.09.2016, from pla. Agencies, 7-c, alexandria road, cantonment, trichy – 620 001. For rs.5, 33, 171/- vide invoice no.348. Dated 15.09.2016. (Enclosure 1)
At the time of purchase, the company had said that the mileage given by the car will not be less than 19.49 km per litre of petrol. Xerox copy of company advertisement pamphlet attached. (Enclosure 2)
But from the beginning i noticed that the car was giving mileage of just 8 to 9 kms. Per litre. When i questioned the dealer i was replied that when the car crossed a total running of 5000 kms., only can we find the actual performance of the mileage.
After crossing the 5000kms. Run, i made a check up with the mileage performance. But then also it gave mileage of just 10 kms. Per litre.