The gallery is the first in the state and is along the lines of the galleries in the Rashtrapati Bhawan and Prime Minister's residence.
The oil portraits of all the former chief ministers and speakers were jointly unveiled by West Bengal Governor Keshri Nath Tripathi who is also former speaker of the UP House, former Chief minister Mulayam Singh Yadav and Chief Minister Akhilesh Yadav in the presence of large number of sitting and former members.
Meanwhile, BJP staged a walkout in the Assembly opposing the UP Kshetra panchayat and zila panchayat amendment bill on bringing no-confidence motion against the district panchayat chairpersons and the khetra panchayat chairpersons.
The amendment in the bill restricts bringing no-confidence motion against the chairpersons of the khetra and district panchayats for a period of two years from the day of their election instead of one year as was in force earlier.