Fiat Punto 1. 3 — rusting any not taking action by dealerships

Address: West Delhi, Delhi

my car fiat punto DL 9 C Q 9664 is getting rusted by the long time i have send many complains to the tata fiat company india but no action taken by them and now my car is gone rusting from each part of it and the dealer ship responce is also not good while doing work on it and in the perion of one year the car gose to dealership for repairs more than 20 times m mantely hurrested by this car please help me in getrid of this problem
some photos of rusting are attched below