Section 2(1)(a) in The National Security Guard Act, 1986
(a)“active duty”, in relation to a person subject to this Act, means any duty as a member of the Security Guard during the period in which such person is attached to, or forms part of, a unit of the Security Guard—(i)which is engaged in operations against terrorists or any person in arms against the Union; or(ii)which is operating at a picket or engaged on patrol or any other duty, in relation to combating terrorist activity;