Prime Minister Manmohan Singh [Images] will reply to the confidence debate on Tuesday at 6 pm and voting is to be held after that.

The Bharatiya Janata Party demanded the resignation of Dr Singh over allegations raised by three saffron party MPs that they were offered money for abstaining from voting.

Rashtriya Janata Dal leader and Railway Minister Lalu Prasad Yadav has demanded that a narco test be conducted on the BJP members who alleged that they were offered bribe to remain absent during the trust vote.

"Yeh sab jali hai. (This is all planted)," Lalu said and demanded an inquiry into it.