Indian equity benchmarks are likely to start the last session of the trading week sharply higher amid gains across global markets as investors focused on the Fed's Jackson Hole conference for clues about the US central bank's policy outlook.Singapore Exchange (SGX) Nifty futures — an early indicator of the Nifty index — rose as much as 103 points or 0.6 percent to 17,691 ahead of the opening bell on Dalal Street.