Section 81(10)(c) in The Coal Mines Regulations, 2017
(c)Test of every Automatic Contrivance and every brake shall be made by the engineer or other competent persons appointed for the purpose, in the following manner, namely:-(i)once at least in every seven days, by raising each cage or other means of conveyance, in turn, to pass the last control point above the topmost landing;(ii)once at least in every three months, by attempting to land the descending cage at excessive speed and for the purpose of this test, the setting of the Automatic Contrivance may be altered so that a pre-determined point in the shaft is regarded as the landing;(iii)the results of every such test shall be recorded in a bound paged book kept for the purpose, and shall be signed and dated by the person making the test.