tiago car poor quality and rusting issues

bought the car in 2018 (Jan) Chennai pallikaranai at tafe motors.. buying was hassle-free. ..initially was happy buying a good car... I drove the car for almost 50k kilometres. .. comfort was ok .. look wise it was ok...mileage 18 to 20 km .. but the paint starts fading within 6 months... started rusting and the bonnet was full of rust ...the battery was totally dead within a year... somehow claimed it since it was on warranty ... coming to the service .. I service it in tafe greams road Chennai... 90 per cent of ur complaints won't be addressed... but they will charge heavily.. I regret my decision of buying this car...... Tata should focus mainly on the quality of the car and more importantly after-sale services....will never buy a tata product anymore and won't suggest anyone buy ...