They will be running good only for the first three years or for approximately 60, 000 km. Then it will show what it is. The dynamo belt cuts frequently. Due to dirt getting in. If you touch any part for replacement the neighbor parts will be next in line for replacement. In our 4.5 years of ownership of Tata indigo LS TDI we changed the belt 4–5 times. The list of component failures includes radiator, coolant tank, clutch, battery fuse, AC compressor, instrument cluster.
Tata vehicles are expensive to maintain.There is a saying in India ghar ki murghi daal barabar. Actually Tata Indica is a good car. If you want to buy one, make sure it has a turbo diesel engine or if you intend to buy a petrol engine then it ok with power. The car has more than any other car in its segment offers at much higher price.