provision of 1 no diesel/petrol driven(on par with diesel rate) vehicle on hire basis for the use of executive engineer/mrt/cedc/north/coimbatore division- 1 hire charges 2 hire charges for diesel/petrol driven van/jeep for the 12.00 hrs usage between 8.30 hrs to 20.30 hrs in a day including driver salary, bata etc but excluding diesel cost 3 retention charges per hour for a period exceeding 12.00 hrs in a day ie., beyond 8.30 pm but upto maximum duration of 4 hours. this hourly retention charges is applicable only when the vehicle returns head quarters and will not be applicable during night halts outside head quarters. 4 retention charges for night halt ie., between 8.30 pm to 8.30 am next morning 5 performance factor for plains in kms/litre 6 performance factor for hills in kms/litre