My friend owns 1.0 belta, always overheating and giving problem in summer he stopped driving now - be careful with your choice.
Any sincere, experienced PWers will rather tell you to go for a market-strong car. Look at the roads near you how many beltas you see every day? There's your answer.
Also keep in mind its discontinued officially, meaning in 2-3 years parts will become much harder to find
Rest other seniors may guide better what sedan you should buy in 10 lac budget