Samajwadi leader Amar Singh alleged on Tuesday that six Lok Sabha MPs from his party were being forcibly kept inside the Uttar Pradesh Bhavan in New Delhi ahead of the crucial trust vote and charged Chief Minister Mayawati with playing coercive politics.Talking to newsmen before the second and final day of special session of the Lok Sabha, Singh said one or two of them may be rebels from his party.Targeting arch rival and the BSP supremo, Singh said Mayawati was resorting to all kind of allurements to wean away his party MPs who are under constant threat from her government.Claiming there was no split in his party which has 38 MPs, Singh alleged that "rumours" of a division in the SP was being spread by Mayawati.