Hiring the services of readily available Fully Built Ambulances(to be supplied by Vehicle Manufacturer),fitted with standard accessories and fittings as may be required, for a period of 03(three) months, extendable up to another 03(three) months if required, with a condition of termination of the contract at any time during the extended period, for round-the-clock duty (i.e. for 24-hr.) or as specified by the Company, to be stationed at OIL's operational areas in Assam and Arunachal Pradesh,