Company is mandatorily expected to take a group Policy to cover gratuity payments.
Sec4A of payment of gratuity act refers in this connection.
Extract
Section 4A in The Payment of Gratuity Act, 1972
19 [4A. Compulsory insurance.—
(1) With effect from such date as may be notified by the appropriate Government in this behalf, every employer, other than an employer or an establishment belonging to, or under the control of, the Central Government or a State Government, shall, subject to the provisions of sub-section (2), obtain an insurance in the manner prescribed, for his liability for payment towards the gratuity under this Act, from the Life Insurance Corporation of India established under the Life Insurance Corporation of India Act, 1956 (31 of 1956) or any other prescribed insurer: Provided that different dates may be appointed for different establishments or class of establishments or for different areas.
(2) The appropriate Government may, subject to such conditions as may be prescribed, exempt every employer who had already established an approved gratuity fund in respect of his employees and who desires to continue such arrangement, and every employer employing five hundred or more persons who establishes an approved gratuity fund in the manner prescribed from the provisions of sub-section (1).
(3) For the purpose of effectively implementing the provisions of this section, every employer shall within such time as may be prescribed get his establishment registered with the controlling authority in the prescribed manner and no employer shall be registered under the provisions of this section unless he has taken an insurance referred to in sub-section (1) or has established an approved gratuity fund referred to in sub-section (2).