Dying declaration is an oral or written statement made by a person who is dying as a result of an unlawful act regarding the cause of their death or surrounding circumstances. It is admissible as evidence in court under Section 32 of the Indian Evidence Act. The doctor must certify the declarant is conscious and mentally sound. Leading questions are not allowed and the statement must be fully recorded even if the declarant loses consciousness. If the declarant survives, the statement only has corroborative value.