AGARTALA, March 20 (TIWN): Tripura Assembly Speaker selection might be a little challenge for the BJP if four MLAs secretly support the Opposition candidate. Congress has nominated Gopal Roy as the candidate for the speaker post. Congress President Birjit Sinha on Monday has announced. Sinha said that the first proposal of Gopal Roy’s name for the Speaker post was given by CPI-M whereas the second was placed by Tipra Motha party. Birjit Sinha also said, in the coming days, Opposition will play a role of construction opponent group and will definitely support the Govt in all works. He said, opposition will support the Govt at each step taken for the people of Tripura’s benefit.