The Evidence Act 1872 was replaced by the BSA 2023 (in force 2024-07-01); no verified section mapping on file for Section 49 — confirm the corresponding provision (savings: Section 170, BSA 2023).
When the Court has to form an opinion as to-- the usages and tenets of any body of men or family, the constitution and government of any religious or charitable foundation, or the meaning of words or terms used in particular districts or by particular classes of people, the opinions of persons having special means of knowledge thereon, are relevant facts.