"Nor do we need support from you to be saved from the military and we have not come for a clash of institutions. We have also not come to be 'shaheeds' (martyrs) as the opposition believes," he said.
The House could debate any demand for a vote of no-confidence or constitutional amendments to cut short the tenure of parliament or the Prime Minister, Gilani said.
However, he cautioned the opposition not to approach "other institutions" to decide matters like the term of the government.
Gilani's remarks were an apparent reference to the petition filed by the main opposition PML-N in the apex court seeking a probe into the alleged memo that had sought US help to stave off a possible military coup in Pakistan last year.
Gilani has insisted that the memo should be investigated by a parliamentary panel, and not the apex court.
A defiant Gilani blamed former military ruler Pervez Musharraf for the NRO, saying the "presumed beneficiaries" of the graft amnesty were being punished while the architect of the NRO was making plans to return to Pakistan from self-exile and asking the people to welcome him back.
The premier acknowledged that his government had made "mistakes" but said democracy should not be punished for this.
He said it would be written in history that the army and Inter-Services Intelligence chiefs had been held accountable in parliament for the first time during his tenure.