For Fx In 1.5 lakh you can overhall the engine or get a new 660 cc engine .Approximately 30 K
Denting around 10 K
Normal Paint around 15K .Top of the line around 30 K
All new body parts around 20 K if its rusted.
Then all the small things Every thing can be changed within 150000 easily and the car will be like new and give u excellent service for next 5 - 10 years. But u have to give time of atleast 1-2 months for this restoration. Try to get a nice car in the range of 1.5 Lakh so the total cost would be Max 300000 rupees