All the 44 Congress legislators on Monday elected him through secret ballot. Besides Mannan, there were two contenders for the same post.
They are Manas Bhuniya and Abu Hena. This is for the first time in the history of West Bengal when a rightist party will have a rightist leader of Opposition.
As the House belongs to the Opposition, the leader of Opposition enjoys ranks of a Cabinet minister.
Mannan was among the first few leaders who had spoken about the alliance with the CPI(M).
He along with other leaders met Sonia Gandhi and convinced her that alliance with the CPI(M) was the need of the hour.
He accompanied Adhir Chowdhury and held meeting with Suryakant Misra in the office of Ganashakti to resolve the impasse that had cropped up over seat adjustment.
He had even said that the Trinamool Congress could be defeated if the election was held under the vigil of the Central Forces.
However, he was proved wrong and the alliance to remain content with 76 seats. Mannan is well adept with the proceedings of the House. He said he would try to build intense contact with people.
It may be recalled that Siddhartha Shankar Roy was the leader of Opposition in early 1990s.
Atish Chandra Sinha and Gyan Singh Sohanpal were the leaders of Opposition. Pankaj Banerjee and Partha Chatterjee were leaders of Opposition in Buddhadeb Bhattacharjee’s tenure.
BJP state president Dilip Ghosh on Monday took his oath of secrecy. Ghosh, who is a RSS activist, became the state president in September 2015.
He defeated veteran Congress leader Gyan Singh Sohanpal in his inaugural debut. He said BJP would stand by the Opposition on the floor on important issues.