BJP suffered a jolt in Rajasthan winning just one of the four seats and was losing ground in Uttar Pradesh where Samajwadi Party was ahead during counting of votes in the bypolls today exactly four months after it swept the two states in Lok Sabha elections.

In Gujarat, ruling BJP could retain only six of the nine seats while Congress bagged two and was ahead in one.

All the nine seats were earlier held by BJP and were vacated after their sitting MLAs were elected as MPs.

The BJP, however, had a reason to smile in West Bengal where it made its debut in the state assembly on its own by winning the Basirhat Dakshin seat. The bypolls for 33 seats spread over 10 states were held on September 13.

The outcome of the bypolls are seen as yet another test of Narendra Modi government's popularity since it assumed power in May.

It is also important as BJP prepares for polls in Haryana and Maharashtra next month where it hopes to oust the Congress in the two states.

In a jolt to the Vasundhara Raje government in Rajasthan, opposition Congress wrested three Assembly seats of Weir, Nasirabad and Surajgarh from the ruling BJP which could retain only the Kota seat. BJP had won all the 25 seats at stake in the Lok Sabha polls.

"It is a huge effort by the Congress party workers and I must give credit to each and everyone especially young people," said Congress leader and former Union Minister Sachin Pilot, who is trying to revive the party in Rajasthan.

In Uttar Pradesh, where 11 seats were at stake, ruling SP bagged the first seat winning Thakurdwara in Moradabad district where its candidate Nawabjaan defeated his nearest rival Rajpal Singh of BJP by a margin of 27,023 votes. It was ahead in eight while BJP was leading in two.

While BSP did not contest the bypoll, Congress and SP fielded candidates on all the 11 Assembly seats, whereas BJP contested on 10 and its ally Apna Dal on one.

The current BJP President Amit Shah had scripted the sweep in UP helping the saffron party bag 71 seats while its ally Apna Dal got two out of the 80 seats in the politically crucial state.