Relative or not

relative”, in relation to an individual, means the husband, wife, brother or sister or any lineal ascendant or descendant of that individual.

I think it should not cover under the defination of relative as per Income Tax Act, 1961.

following r considered as relatives(in case of individual) under income tax act::

1) spouse of individual                                                        -----husband/wife

2)brother / sister of individual

3)brother/ sister of spouse of individual                          -----brother in law/sister in law

4)brother/ sister of either of parents of indiviual            -----chacha/mama/bua/maasi

5) lineal ascendents/descendents of individual           -----daada/daadi/naana/ naani

6)lineal ascendents/descendents of spouse of individual

7) spouse of persons mentioned abv(1---6)