Under the Hindu Adoptions and Maintenance Act, 1956, the obligation of the father-in-law depends on:

Section 19(2) says the obligation "shall not be enforceable if the father-in-law has not the means to do so from any coparcenary property in his possession out of which the daughter-in-law has not obtained any share", and it ends on her remarriage. His self-acquired property is not the measure.