Prime Minister Manmohan Singh returned to New Delhi on Tuesday after a three-day visit to Russia, during which the two sides signed a path-breaking civil nuclear agreement and three defence pacts.

Dr Singh had met Russian President Dmitry Medvedev and Prime Minister Vladimir Putin on Monday and discussed a wide range of issues, including terrorism.

On Monday, the two sides signed a path-breaking civil nuclear agreement that will guarantee uninterrupted uranium fuel supplies for Indian atomic reactors and transfer of technology.

The deal is perceived as being much more beneficial for India than the historic 123 atomic agreement with the US which does not guarantee fuel supplies without any break.

Dr Singh had described the inter-governmental framework agreement for civil nuclear cooperation as a 'major step' forward and said India was 'very satisfied' at the development of bilateral atomic cooperation.