Good looking car with poor city mileage

I would like to give a feedback on my recent purchase of TATA Nexon in Kolkata.

I got the delivery in the month of February . Till now around 4700 KM I have driven in the city. But I found the mileage of the car is extremely poor.

It is about 7.26kmpl. I had visited the workshop . They then drove the car is a semi ideal condition and found the mileage around 16kmpl.

I had specifically told them the city mileage is extremely poor. They could do nothing. TATA is claiming they are giving a very good compact SUV in a good price. Unfortunately the mileage which is a main factor in a country like INDIA they are not able to come to the expectation. Rather Maruti cars give excellent mileage. Overall the car design and the feel is good. Unfortunately the mileage of the car is much below expectation. TATA should have reviwed the car in city condition before launching.