India will push its Group of 20 partners at a meeting it is hosting to support its proposal to raise the share of taxes multinational companies pay to countries where they earn "excess profits", government officials said. India's proposal, which has not been previously reported, could temper optimism among G20 members such as Australia and Japan that the meeting of finance ministers and central bankers in Gujarat would make progress on a long-awaited overhaul of global corporate taxation. More than 140 countries were supposed to start implementing next year a 2021 deal overhauling decades-old rules on how governments tax multinationals.