Toyota — extremely poor mileage 9-10 kmpl for etios liva v

Address:

Kanpur, Uttar Pradesh, 208019

Since i have purchased the car in nov 2016, the mileage is as low as 9-10 kmpl. Twice dealers have checked but could not solve. They have said that it is poor driving style. I have read several similar complaints in the internet for this car model. Please either solve the problem or take back the car. Such ingenuity is never expected from toyota claiming more than 18 kmpl.