India and Saudi Arabia have backed ongoing international efforts to resolve the controversy over Iran's nuclear programme peacefully through dialogue while encouraged Tehran to respond to the efforts to remove doubts over its atomic ambitions.In a declaration issued after a meeting between visting Prime Minister Manmohan Singh and Saudi King Abdullah in Riyadh last night, the two leaders called for continuation of these efforts.Their call came a day before UN atomic agency IAEA begins a four-day meeting of its 35-member board in Vienna to discuss its latest report on Iran's nuclear programme.They also emphasised the importance of regional and international efforts focusing on making the Middle East and Gulf Region free of all nuclear weapons and all weapons ofmass destruction.The US, Russia and France have accused Iran of spurning a UN-backed offer to exchange the bulk of Iran's low-enriched uranium for fuel plates for an Iranian medical reactor.