Gratuity fund definitions clarify approving authority, beneficiary, fund, trust, and trustee for the connected rules. Definitions are prescribed for rules 317 to 329. The approving authority means the Principal Chief Commissioner, Chief Commissioner, Principal Commissioner, or Commissioner. Beneficiary refers to a person covered under the relevant provision of Part B of Schedule XI for whom gratuity is provided. The fund means a gratuity fund, and the trust means the trust under which the fund is established, with trustee referring to a trustee of that trust.