In this Chapter, unless the context otherwise requires,
         (a) "accident" means an accident of the nature described in section 124;
         (b) "dependant" means any of the following relatives of a deceased passenger, namely:--
             (i) the wife, husband, son and daughter, and in case the deceased passenger is unmarried or is a minor, his parent;
             (ii) the parent, minor brother or unmarried sister, widowed sister, widowed daughter-in-law and a minor child of a pre-deceased son, if dependant wholly or partly on the deceased passenger;
             (iii) a minor child of a pre-deceased daughter, if wholly dependant on the deceased passenger;
             (iv) the paternal grand parent wholly dependant on the deceased passenger;
         ¹[(c) "untoward incident" means--
         (1) (i) the commission of a terrorist act within the meaning of sub-section (1) of section (3) of the Terrorist and Disruptive Activities (Prevention) Act, 1987 (28 of 1987); or
             (ii) the making of a violent attack or the commission of robbery or dacoity; or
             (iii) the indulging in rioting, shoot-out or arson, by any person in or on any train carrying passengers, or in a waiting hall, cloak room or reservation or booking office or on any platform or in any other place within the precincts of a railway station; or
     (2) the accidental falling of any passenger from a train carrying passengers.]