The bill, seeking to make the eighty-first amendment to the Constitution, was introduced in the Lok Sabha by Union law minister Ramakant Khalap.
The bill received considerable support from all sections of the House.
Voting on the bill is scheduled for 12 noon tomorrow.
During the day, however, there was considerable talk about the men MPs opting to keep away from voting as they were said to be uneasy about which seats would be reserved for women after the amendment.
No one was willing to risk the possibility that the irseat may go into the women's kitty.
Some men MPs had even left the city a day before the session end before any whip could be issued to force them to attend the House on Friday.
One of them held forth at length on how reservations for women needed to be fully implemented at the panchayat and nagar palika level first.
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The constitutional amendment requires 50 per cent of the current strength of the House present and voting, and many said they hoped the quorum would not be completed.
Some agitated women MPs stood around in knots complaining vociferously in the corridors and the Central Hall that nobody was serious about putting the promised reservation into practice.
The bill was introduced after women MPs from all parties met Prime Minister H D Deve Gowda and insisted that the bill be passed during this session.
Among the women MPs who spoke during the inconclusive debate were Sushma Swaraj (BJP), Girija Vyas (Congress) and Geeta Mukherjee (CP).