" (1) [1963] Supp. 1 S.C.R. 172. 435 He made a reference to the decision in Daryao and others vs The State of U.P. and others(1) on the question of res judi cata and the decisions in Amalgamated Coalfields Ltd. and others vs Janapada Sabha, Chhindwara(2) and Devilal Modi 's case (supra) and summarised the decision of the Court as follows : "As a result of the above discussion, we are of opinion that the provisions of section 11 C.P.C. are not exhaustive with respect to an earlier decision operating as res judicata between the same parties on the same matter in controversy in a subsequent regular suit and that on the general principle of res judicata, any previous decision on a matter in contro versy, decided after full contest or after affording fair opportunity to the parties to prove their case by a Court competent to decide it, will operate as res judicata in a subsequent regular suit.