We would recommend the new Hyundai Venue as it is a very good all-rounder, and you will get a well-equipped variant too.
Pick from the naturally aspirated petrol models as the turbo petrol engine is very sensitive to driving style, and its real-world efficiency is often well lower than the claimed figure.
The Mahindra 3XO is also a good all-rounder; however, it's geared more towards a peppy drive experience, and this comes at the expense of fuel efficiency, and since which is important for you, so it's best avoided.

