The vote on whether to suspend members of the upper house
The upper house of India's parliament has approved a bill to reserve a third of all seats in the national parliament and state legislatures for women.
The bill was passed with 186 members of the 245-seat house voting in favour. Only one member voted against. Several smaller parties boycotted the vote.
The bill's introduction on Monday led to uproar from opponents, resulting in the suspension of seven MPs on Tuesday.
First proposed in 1996, the bill now has support from India's main parties.
By Soutik Biswas BBC News, Delhi
This is one affirmative action which large parts of India do support.
India does have some measures to support its women, but in a largely patriarchal society they have borne the brunt of neglect and discrimination.
Acts such as female foeticide leading to skewed sex ratios in some of the most prosperous states are abominable. Things are changing, but the way India sometimes treats its women is a national shame.
Also, with just 10% of its parliamentary seats held by women, India needs to play catch-up. Its neighbours fare much better - Bangladesh reserves 15% of its parliamentary seats for women, Pakistan 30% and Afghanistan, after its new constitution, more than 27%.
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