Aso See: Parliament Monsoon Session Live
Sources said the opposition leaders will not allow any business to be taken up in Lok Sabha after a no-confidence motion against the government was admitted by Speaker Om Birla.
The opposition MPs have pointed out that ideally the no-confidence motion should be discussed before any other business is taken up.
They wore black clothes as a mark of protest for not allowing a discussion on Manipur and Prime Minister Narendra Modi not making a statement in both Houses on the violence-racked northeastern state.
The opposition MPs have been protesting in Parliament every day over the issue.
A no-confidence motion against the government by the Congress on behalf of the opposition alliance was admitted by Birla on Wednesday. Birla said a date for a discussion on the motion will be decided after consulting the leaders of all parties.