If you don't hold a driver's license issued in Nepal, then you might need to acquire an International Driving Permit (IDP) in your place of residence to be allowed to rent a car. It's also important to note that if an IDP is required, it has no validity on its own. You'll need to show your current driver's license your passport and other forms of ID as well. Lastly, make sure the credit card used to book the rental vehicle matches the name on your driver's license and passport. Some additional requirements for international car rentals are:

• Age restrictions: You need to be 25 or over in many countries to rent a car. If you're younger than that, it may still be possible to rent a car but you'll have to pay a Young Driver's Surcharge. Additional restrictions may also apply to the types of cars you can rent.
• Driving limitations: Be sure to read the rules and regulations before you drive off the lot. Typically, you can't cross country borders, drive onto ferries or on off-road areas with a rental car.