UNP Deputy Leader Sajith Premadasa said he accepted responsibility for the defeat at the last Presidential election.
"Yes, there was a setback and I accept full responsibility for the result," he said, speaking at a public gathering in theKolonnawa area.
Premadasa also stated that he would go around the country to ensure the victory of the UNP at the Parliamentary election.
"If people want me to retire from politics, I will do so. I have fear and shame," he added.
He also said he would have a number of meetings in the coming weeks to express gratitude to those who voted for him at the Presidential polls.