Tata needs to pay attention to details

I purchased a new Tigor (XZ+) in Jan 2019, the car is surely a looker and the ride is comfortable. Features, especially the touch screen and sound system, are amazing. Mileage of the car is poor, getting around 15 kmpl even after moderate speed driving on highways using city mode. The built quality is good, although I faced the problem of water inside the cabin via door this monsoon when it rained heavily. Even the petrol engine sounds like Diesel and lacks power.