In general, the down payment remains in between 10-30% of the on-road price of the vehicle and ROI varies between 10-12% and it totally depends on the CIBIL/Credit score of an individual. So, we'd suggest you walk into the nearest dealership to know the final finance quotation and documentation as they will be the better person to assist you. You can click on the following link to see the details of the nearest dealership and selecting your city accordingly.
For this, we'd suggest you please visit the nearest authorized service centre as they would be able to assist you. Follow the link and select your city accordingly for service centers details.