A broad agreement has been worked out between the Congress, Akhilesh Yadav's Samajwadi Party, Dalit powerhouse Mayawati and RLD leader Ajit Singh to take on the BJP in Uttar Pradesh, the state that sends the maximum number of parliamentarians to the Lok Sabha, reports NDTV.

Sources said the parties have decided to work out the details of sharing the state's 80 seats later, NDTV  reported.

The understanding between the parties in the nation's largest state is crucial to the building of an opposition front to take on the BJP in next year's general elections. The idea of a common front in Uttar Pradesh paid dividends in by-elections held in the state earlier this year – delivering to the opposition the high-profile seats of Gorakhpur and Phulpur, and later Kairana and Noorpur, NDTV reported.