Supreme Court laid out this judgment to the extent of… Hindu woman marrying a Hindu man having a lawfully wedded wife is not entitled to maintenance.
From Para 8,
Smt. Yamunabai Anantrao Adhav A Vs Ranantrao Shivram Adhav And ... on 27 January, 1988
8. We therefore, hold that the marriage of a woman in accordance with the Hindu rites with a man having a living spouse is a complete nullity in the eye of law and she is not entitled to the benefit of s. 125 of the Code.