I have driven 40000 km tata tiago. Initial 10000kms the performance was superb. Later there was a lot of problems.
1. Power reduced, 2. Rattling sond inside the cabin, 3. Milege reduced to below 15km/litter. Initially it was 19km/litter, 4. Gear liver vibrates with an iritating sound.
Considering all the drawbacks, I would say Tata tiago is the best car one can buy for this amount of money