Indian Penal Code, 1860
90. Consent
known to be given under fear or misconception
A consent is not such
a consent as it intended by any section of this Code, if the consent is given by
a person under fear of injury, or under a misconception of fact, and if the
person doing the act knows, or has reason to believe, that the consent was
given in consequence of such fear or misconception; or
Consent of insane
person-
if the consent is given
by a person who, from unsoundness of mind, or intoxication, is unable to
understand the nature and consequence of that to which he gives his consent; or
Consent of child-
unless the contrary
appears from the context, if the consent is given by a person who is under
twelve years of age.