Jobless doesn't always means no source of income or no means to maintain oneself. A person who is jobless can be having bank balance, property out of which income can be made and other means to maintain oneself.
Husband or father who is jobless is in litigation for last 3 years for divorce proceedings and is able to pay for the litigation expenses can even pay for his separated wife and child. The wife if has means to maintain herself will not be allowed any maintenance but for minor child the father is supposed to provide for child support.
If the husband is not capable to pay maintenance to his wife, then her husband's brother (देवर या जेठ) if living together as joint family, is liable to pay maintenance to her as per the latest ruling of SC.