There was uproar in the House during the discussion on municipal affairs department budget when Ali Imran referred to some words aimed at the chief minister which was severely protested by the treasury bench members.
Some from the treasury bench rushed towards Ali Imran.
Panchayat Minister Subrata Mukherjee raised a point of order and requested the Speaker to take strict action against the member who was in the habit of using obscene and unparliamentary words against the chief minster.
As the chair asked Ali Imran to explain his conduct, he stuck to his stand that he had not uttered any unparliamentary word and said the Speaker should take action against those Treasury bench members who rushed to him menacingly.
The Speaker then ordered one-day expulsion of the Forward Bloc member and expunging the words used by him.
Protesting the Speaker's decision, the opposition Left Font members staged a walk-out.