Condemning the serial blasts, the members asked the government to explain why the terror incident took place despite a warning issued by the Centre two days earlier.
Initiating an impromptu discussion on the issue, Leader of the Opposition Sushma Swaraj said the lapse gets magnified when such incidents occur despite the government having intelligence inputs.
Earlier, the House witnessed an adjournment on the issue soon after it assembled as members wanted an immediate response from the government.
CPI(M) leader Basudeb Acharia, SP chief Mulayam Singh Yadav and several others spoke in similar vein with Yadav asking the government to spell out where the weakness was.
Dara Singh Chauhan (BSP) wanted the government to ensure that innocent persons did not get trapped while unearthing the conspiracy behind these incidents.
In a scathing attack on the Congress-led coalition at the Centre, JD(U) leader Sharad Yadav said the occurrence of such incidents, in spite of the united resolve of the House, showed that the government was "lame duck" as also the intelligence set-up. "The problem with this government is that it does not have any stature. It is lame duck."
Trinamool Congress leader Sudip Bandopadhayay attacked the government over its "over-confidence".
He said West Bengal Chief Minister Mamata Banerjee's style of functioning has brought Maoist activities to "zero level" in the state, while the Centre's "over-confidence" reflected in the President's Address, which did not have any mention of the terrorist menace.
Ajay Kumar (Jharkhand Vikas Morcha-Prajatantrik), himself a former IPS officer, wanted intelligence agencies to be made accountable to Parliament as he suggested they escaped scrutiny with regard to such incidents.