Bypolls on 10 assembly seats in Uttar Pradesh will be a litmus test for the INDIA bloc's unity after the group's success in the recent Lok Sabha polls when they won more than 40 seats, significantly contributing to the BJP's failure to win a simple majority in parliament. However, the two INDIA bloc allies in Uttar Pradesh -- Samajwadi Party and Congress -- have not been able to firm-up a seat-sharing pact for the bypolls even though the Congress has staked claims to contest five of the 10 seats, a proposition the SP may not agree with. Leaders from both the parties say their aim is to defeat the BJP, and they are confident they would contest the bypolls together. Uttar Pradesh Congress chief Ajay Rai told PTI, "The party is holding 'Samvidhan Bachao Sammelan' (save Constitution conferences) on all 10 assembly seats that are going to polls. Two such conferences have already been held. We have appointed incharges and observers on all the 10 seats and ground work is on." The assembly