Seeing your daily average is just 33 kms of city traffic i would suggest to go for wrv petrol i-vtec.You'll get the best of both worlds suv,hatchback as its a crossover.If mileage is concern and not safety then go with baleno.
The only main important draw back of baleno is that they have done cost cutting by not giving coils for shock absorber which is even present in a wagonR which costs 2-3L less. But still people are blindly following the horde and buying the Baleno.
Test drive all the cars Baleno,I20 elite,WRV at bumps in slow speed and normal speed youll know the difference for yourself.
Many might say petrol is not powerful but my question is where exactly will you use that power in city traffic?
In city max youll got at 50-60 kmph past thing that the person is insane to drive on 70-80 kmph in city traffic.
If you could wait then even venue will be a good choice and as you haven't given your choice of class then i would say even Amaze is good at petrol