“Now the doctrine of promissory estoppel is wellestablished in the administrative law of India. It represents a principle evolved by equity to avoid injustice and, though commonly named promissory estoppel, it is neither in the realm of contract nor in the realm of estoppel. The basis of this doctrine is the interposition of equity which has always, true to its form, stepped in to mitigate the rigour of strict law. This doctrine, though of ancient vintage, was rescued from obscurity by the decision of Mr. Justice Denning as he then was, in his celebrated judgment in Central London property Trust Limited v . High Trees House Limited [(1956) 1 All E.R. 256]. The true principle of promissory estoppel is that where one party has by his word or conduct made to the other a clear and unequi v ocal promise or representation which is intended to create legal relations or affect a legal relationship to arise in the future, knowing or intending that it would be acted upon by the other party to whom the promise or representation is made, and it is in fact so acted upon by the other party, the promise or representation would be binding on the party making it and he would not be entitled to go back upon it, if it would be inequitable to allow him to do so, having regard to the dealings which have taken place between the parties.” (underline supplied)