Guardian not to keep money in his hands
15. Subject to the provisions of paragraph (7) of Rule 14, a guardian must pay all money coming into his hands on account of his trust without delay to the trust account at the bank, and if he keeps any such money in his hands for a longer time than the Court considers necessary shall be liable to pay interest upon it at such rate not exceeding nine per centum as the Court may fix for the time during which the money remains in his hands.