hiring of one no. diesel / petrol driven car for the daily use of superintending engineer / erode generation circle; 1 hire charges for 13 hrs. from 08:00 hrs. to 21:00 hrs per day in general but may vary depend on every day requirement. ( not on hourly basis ) excluding cost of fuel.this shall include charges for lubricant required for running the vehicle, wear and tear, servicing, repairs, tools and tackles etc., driver’s salary batta and other allowance, insurance and all others charges, tolgate charges / parking charges 2 hourly retention charges per completed hour beyond thirteen hours subject to maximum of four hours. ( the 13 hrs. duration is generally from 08:00 hrs to 21:00 hrs. but may vary depending on everyday requirement. ) 3 extra rates for night halt use of the vehicle if requiredbetween 21:00 hrs to 08:00 hrs. on the next day exceeding the four hours refered in ( 2 ) above 4 performance factorfor plains 5 performance factorfor hills