Dear Jothi,
Greetings!
As per the ESI Act:
51C. Accidents happening while traveling in employer's transport
(1) An accident happening while an insured person is, with the express or implied permission of his employer, traveling as a passenger by any vehicle to or from his place of work shall, notwithstanding that he is under no obligation to his employer to travel by that vehicle, be deemed to arise out of and in the course of his employment if:
(a) the accident would have been deemed so to have arisen had he been under such obligation; and
(b) at the time of the accident, the vehicle
(i) is being operated by or on behalf of his employer or some other person by whom it is provided in pursuance of arrangements made with his employer, and
(ii) is not being operated in the ordinary course of public transport service.
(2) In this section "vehicle" includes vessel and an aircraft.
51D. Accidents happening while meeting emergency
An accident happening to an insured person in or about any premises at which he is for the time being employed for the purpose of his employer's trade or business shall be deemed to arise out of and in the course of his employment if it happens while he is taking steps, on an actual or supposed emergency at those premises, to rescue, succor, or protect persons who are, or are thought to be or possibly to be, injured or imperiled, or to avert or minimize serious damage to property.