With your kind of driving, it would be better to opt for a diesel car. This will help you keep fuel costs in check. In the budget you have mentioned, a Diesel and Automatic combination is difficult to find in the midsize SUV segment.
Instead, you can opt for the Tata Nexon Diesel AMT. It is a good choice for your budget. Nexon diesel with AMT delivered 18 kmpl mileage in our real-world mileage test.
Yes, Tata Motors is not particularly known for reliability, but the Nexon has been in the market for a long and some of the earlier issues have been resolved. Tata Motors is also trying to change the perception of its reliability, and hopefully, customers will see the difference soon. Given that most of your driving is in the city, do remember to take the car out for a longer drive occasionally so the DPF can regenerate properly.