The Evidence Act 1872 was replaced by the BSA 2023 (in force 2024-07-01); no verified section mapping on file for Section 29 — confirm the corresponding provision (savings: Section 170, BSA 2023).
If such a confession is otherwise relevant, it does not become irrelevant merely because it was made under a promise of secrecy, or in consequence of a deception practised on the accused person for the purpose of obtaining it, or when he was runk, or because it was made in answer to questions which he need not have answered, whatever may have been the form of those questions, or because he was not warned that he was not bound to make such confession, and that evidence of it might be given against him.