Congress lawmakers protesting inside the Lok Sabha
Lok Sabha Speaker Sumitra Mahajan has suspended 25 members of the Congress for five days for causing "grave disorder" in Parliament.
Ms Mahajan's action came after repeated warnings to the main opposition party's lawmakers not to carry placards and wear black bands in protest to the House.
The Congress has continuously disrupted both houses every day since the monsoon session of parliament began.
Congress president Sonia Gandhi made it clear at a meeting of her party MPs today that the protests would go on till three top BJP leaders caught in controversies are removed.
As Ms Mahajan announced the punishment, the Trinamool Congress' Sudip Bandopadhyay requested her to take a more lenient view, but the Speaker did not relent.
She also adjourned the House for the day.