Thanking the United Progressive Alliance leadership and its constituents for a "convincing" victory in the trust vote, a beaming Prime Minister Manmohan Singh [Images] on Tuesday night said whatever is necessary under the law will be done on charges of bribing MPs.

"Whatever necessary in accordance with the provisions of the law will be done," Dr Singh told reporters in the Parliament complex.

He was replying to a question on the cross-voting and charges of bribery.

The prime minister said, "These developments (bribery charges) make me extremly sad, if true," He said the government would cooperate to see that "the truth is established."

The prime minister said he was "extremely grateful" to the members of Parliament for giving "a convincing victory".

"This vote gives a clear message to the world that India's head and heart are sound and India is prepared to take its rightful place in the comity of nations," Dr Singh said.

He particularly thanked UPA chairperson Sonia Gandhi [Images], leaders of the UPA and all those who worked for the victory.

The prime minister said he was "extremely grateful" to the members of Parliament for giving "a convincing victory".

"This vote gives a clear message to the world that India's head and heart are sound and India is prepared to take its rightful place in the comity of nations," Dr Singh said.

He particularly thanked Sonia, leaders of the UPA and all those who worked for the victory.

Dr Singh said he never forgets his life as a young boy in a distant village every day he has been in the high office.

"Every day that I have been prime minister of India I have tried to remember that the first 10 years of my life were spent in a village with no drinking water supply, no electricity, no hospital, no roads and nothing that we today associate with modern living," Dr Singh said.

In his reply to a discussion on the confidence motion in the Lok Sabha, Singh said the country has given him the opportunity to ensure that such would not be the life of our children in the foreseeable future.

"Sir, my conscience is clear that on every day that I have occupied the high office, I have tried to fulfill the dream of that young boy from the distant village," he said.

"Whatever I have done in this high office I have done with a clear conscience and the best interests of my country and our people at heart. I have no other claims to make," he added.