11. Specification of term of contract and installments:
(1) In arranging for the contract of any amount pursuant to this Act, it shall be arranged for a period of three years. Provided that if it appears necessary from the viewpoint of economic benefit or public interest, nothing contained in this Sub-section shall be deemed to bar the arranging by the Government of Nepal of such a contract for a period less than that or for any period whatsoever in excess thereof.
(2) In arranging a contract of any amount pursuant to this Act, terms and conditions shall be so specified that the amount of contract agreed to make payment by a contract has to be paid in any one mode out of counting tariff, counting installment or installment. Provided that if it appears appropriate from the viewpoint of economic benefit or public interest, nothing contained in this Sub-section shall be deemed to prevent the Government of Nepal from specifying any other terms and conditions in relation to the mode of payment of the amount of contract instead of such terms and conditions.
(3) In making arrangement of contract of any other governmental work except an amount, the terms agreed between the Government of Nepal and the contract in relation to the period of contract and payment of money shall apply