When one person has, by his declaration, act or omission, intentionally caused or permitted another person to believe a thing to be true and to act upon such belief, neither he nor his representative shall be allowed, in any suit or proceeding between himself and such person or his representative, to deny the truth of that thing.
Illustration
A intentionally and falsely leads B to believe that certain land belongs to A,
and thereby induces B to buy and pay for it.
The land afterwards becomes the property of A, and A seeks to set aside the sale on the ground that, at the time of the sale, he had no title. He must not be allowed to prove his want of title.
Section 111 Proof of good faith in transactions where one party is in relation of active confidence
Section 111A Presumption as to certain offences
Section 112 Birth during marriage, conclusive proof of legitimacy
Section 113 Proof of cession of territory
Section 113A Presumption as to abetment of suicide by a married woman
Section 113B Presumption as to dowry death
Section 114 Court may presume existence of certain facts
Section 114A Presumption as to absence of consent in certain prosecution for rape
Section 116 Estoppel of tenants and of licensee of person in possession
Section 117 Estoppel of acceptor of bill of exchange, bailee or licensee