@Bhoot,
My honest advice to you is that don't hire a car. It is better to buy and then sell back after using a month or so.
Let me tell you my expereince with a hired car.
Last Summar I hired a car to visit murree with family for only three days. We were agreed on Rs 1800/Day.
The car was City, 2006.
We spent two days in murree and when we were coming back on thirday, In the morning the clatch pedal was not working even I didn't drive alot during two days, we walked more than drive the car. Anyway, I went after mechanic and when he saw the car he said I will take four thousand Rs without the actual cost of the Clutch plate.
I was there with family and I had no choice. I said Ok, We bought the clutch plate on Rs. 8000 and plus four thousand the mechanic cost. Plus it took one extra day to fix the car. It costed me around 21000 Rs for only three days (Almost 7000 Rs/Day).
Thanks to Almight Allah that the car didn't touchwith any thing. When I brought back the car, the rented company man was going around the car more than 10 times to see if I put the scratch on the car.
I hope my expereince will help you in taking decision.
If in any case you have to rent the car than I will suggest to not rent a new one.