@ author the below clarifies your doubt
CHAPTER II
MAINTENANCE OF PARENTS AND SENIOR CITIZENS
4. Maintenance of parents and senior citizens : (1) A senior citizen including parent who
is unable to maintain himself from his own earning or out of the property owned by him, shall be
entitled to make an application under section 5 in case of—
(i) parent or grand-parent, against one or more of his children not being a minor;
(ii) a childless senior citizen, against such of his relative referred to in clause (g) of
section 2.
(2) The obligation of the children or relative, as the case may be, to maintain a senior citizen
extends to the needs of such citizen so that senior citizen may lead a normal life.
(3) The obligation of the children to maintain his or her parent extends to the needs of such
parent either father or mother or both, as the case may be, so that such parent may lead a normal
life.
(4) Any person being a relative of a senior citizen and having sufficient means shall
maintain such senior citizen provided he is in possession of the property of such senior citizen or
he would inherit the property of such senior citizen:
Provided that where more than one relatives are entitled to inherit the property of a senior
citizen, the maintenance shall be payable by such relative in the proportion in which they would
inherit his property