Section 81AJ(1)(a) in Kerala Factories Rules, 1957
(a)For factories employing upto 50 workers-(i)the services of a Factory Medical Officer on retainer-ship basis, in his clinic to be notified by the occupier. He will carry out the pre-employment and periodical medical examination as stipulated in rule 81AI and render medial assistance during emergency;(ii)a minimum of 5 persons trained in first-aid procedures amongst whim atleast one shall always be available during the working period;(iii)a fully equipped first-aid box.