7. Relying upon the decision in the case of Union of India –v- Kishorilal Gupta & Bros. , reported in AIR 1959 SC 1362, he submitted that when an arbitration clause is a collateral term of contract and an integral part of the contract, in such a case, howsoever comprehensive the terms of the arbitration clause may be, the existence of the contract is a necessary condition for its operation. In other words, it perishes along with the contract. Since the Concession Agreement has been declared null and void ab initio , the necessary inference would be that it had never legally come into existence. Thus, there cannot be any existence of arbitration clause in absence of the main contract itself. He also relied upon the case of Jaikishan Dass Mull -vLuchhiminarain Kanoria & Co., reported in AIR 1974 SC 1579 and Andritz Oy. rep. through Power of Attorney Agent, Mr. Siraj Ahmad, New Delhi–V- Enmas Engineering Pvt. Ltd., rep. by its Director and Principal Officer, Chennai and another, reported in (2007) 3 Arb LR 545. He, therefore,