"I cannot hide my deep sense of disappointment over the manner in which Parliamentary proceedings have been disrupted by the principal opposition party," Gandhi said at a function to mark four years of UPA-II rule.
"We are disappointed that we have not been able to get crucial legislations enacted entirely because of this obstructionist approach (of BJP).
Gandhi made a "fervent plea" to the NDA and other opposition parties to come together and clear the passage of the Food Security and the Land Acquisition bills, saying these were "non-partisan" issues affecting the lives of millions of people and this was not a question of government versus the opposition.
Maintaining that the Prime Minister has been subjected to "unrelenting hostility and abuse" by the Opposition, Gandhi said "we respect and stand by him."
To questions on the BJP's attack on ruling UPA coalition and its four-year rule, the Prime Minister said "what else do you expect from a non-result oriented Opposition."
He said "there is lot of motivated criticism. Sometimes there are attempts to derail us.