The submission of Shri Aggarwal, Counsel for the respondents,may be stated thus : (1) Upon the facts of the case, there had been a recession of the old contracts and substitution of a new, legally enforceable and unconditional contract, which came into immediate effect; (2) the new contract can be legally supported either under section 62 or section 63 of the Indian Contract Act or under the general law of contracts; (3) the non performance of the terms of the new contract did not have the effect of reviving the rights and obligations under the old contracts as they did not remain alive for any purpose; and (6) even if the arbitration clause did not remain alive after the new contract, the arbitrator was bound to decide the case in terms of the new contract, and he having not done so, the error is apparent on the face of the record and therefore the award is liable to be set aside.