There are no Bell 204s in India and you cannot import aircraft that are older than 20 years.
A Bell 407 (basically the helicopter of choice in India) goes for about 78000 to 85000 Rupees plus tax per hour.
Add accomodation for one pilot and one technician.
Since you want to go rural you have to add the cost for positioning fuel barrels and pumps.Plan on two trucks (lorries?)
The fuel suppliers, Reliance or Indian Oil, like to see advance payments.