Assembly elections are due by year-end in Rajasthan, Madhya Pradesh, Chattisgarh and Delhi and their outcome is likely to have an impact on UPA's prospects in the 2014 general elections.
"UPA Coordination Committee meeting should be called immediately so that the coalition partners can deliberate on strengthening the alliance," NCP Spokesman D P Tripathi told reporters here.
The NCP demand comes in the wake of UPA losing two key allies - DMK and Trinamool - following differences with Congress.