But at the same time top SP leaders said the party was "in principle" against bifurcation of states.
"The no-confidence motion is a new development. But we have left a final decision on party supremo Mulayam Singh Yadav," a senior party leader told PTI tonight.
He said the party, with 22 MPs in Lok Sabha, was unlikely to support the motion, but "if the government fails to prevent a vote, then SP will have to take a final call as we are against smaller states".
Some TDP members have claimed that they are in touch with SP leadership on the issue of no-confidence motion.
YSR Congress chief Jaganmohan Reddy had recently met SP leaders seeking their support against the Telangana Bill.
In an embarrassment to Congress, six of its MPs from Seemandhra had yesterday given notice for the no-confidence motion against the Manmohan Singh government to protest creation of Telangana and were joined by TDP and YSR Congress Party in this endeavour.
The Seemandhra MPs, four TDP members of Lok Sabha and three members of YSR Congress Party led by Jaganmohan Reddy gave separate notices to Speaker Meira Kumar for moving the no-trust motion.
