New Delhi, August 08 (ANI): Prime Minister Manmohan Singh greeted 75-year-old vice president Hamid Ansari in New Delhi after he defeated main opposition-backed rival Jaswant Singh by 252 votes to retain the country's second highest constitutional post in elections held by lawmakers. Speaking to media persons in New Delhi, leader of Congress, Janardhan Dwivedi conveyed his gratitude to the members of the ruling UPA and other parties who voted for Ansari.