Kolkata, Nov 28 (IANS): The BJP was ahead in Kaliaganj, ruling Trinamool Congress was leading in Karimpur, while the Congress was occupying the pole position in Kharagpur Sadar after the first round of counting on Thursday for the West Bengal Assembly bypolls.

The bye-elections were held on November 25.

In Kaliaganj, BJP contestant Kamal Chandra Sarkar was leading by 1,600 votes over his Trinamool Congress rival.

In Kharagpur Sadar, Left Front backed Congress candidate Chittaranjan Mondal was leading by 980 votes.

In Karimpur, Trinamool Congress candidate Bimalendu Sinha Roy has left behind his rivals by over 4,000 votes.

The Left Front and the Congress have formed an alliance with the Congress in the fray from Kharagpur and Kaliaganj and Left Front major CPI-M from Karimpur.

The Kaliaganj seat fell vacant after the incumbent Congress legislator Pramathanath Roy passed away. Kharagpur Sadar went to the hustings as the sitting MLA -- BJP's Dilip Ghosh -- was elected to Lok Sabha from Medinipur constituency earlier this year.

Likewise, the Karimpur constituency in Nadia district had to go for the by-poll with its lawmaker Trinamool's Mahua Moitra winning the Lok Sabha battle from Krishnnanagar.

During the general elections, the BJP led in the Assembly segments of Kharagpur Sadar and Kaliaganj, while the Trinamool was ahead in Karimpur.