Congress vice president Rahul Gandhi was a part of the protest attended by several members of parliament.
The Opposition says the family of Ahamed was insulted and the news of his death was kept as a 'secret' for hours by the government.
Ahamed suffered a cardiac arrest during the Lok Sabha session on January 31, a day before the Union Budget 2017 was presented in Parliament by Finance Minister Arun Jaitley on February 1. He was declared dead on February 1.
The Opposition demanded to postpone the tabulation of budget in the wake of Ahamed's--a sitting MP--demise. However, the Centre went ahead and presented the budget.
In response to the Opposition's allegations, union minister Venkaiah Naidu told ANI, "The government will answer if issue (Ahamed's death) is raised in Parliament. They (opposition leaders) are trying to politicise the issue. Doctors did their best. I don't understand, what's the issue?"
One more protest was staged by the members of Trinamool Congress inside Parliament complex against the Centre's policies on Monday.