India, Sept. 29 -- Widespread UN sanctions against Iran returned into force late on Saturday for the first time in a decade, after last-ditch nuclear talks with Western powers failed to produce a breakthrough. The sanctions, two months after Israel and the US bombed Iran, bar dealings related to Iran's nuclear and ballistic missiles programme but are expected to have wider effects on a troubled economy. An 11th-hour effort by Iran allies Russia and China to postpone the sanctions till April failed to win enough votes in the Security Council on Friday "...any action aimed at undermining the rights and interests of its [Iran's] people will face a firm response," Iran said.P9...