<h1>Markets turn volatile and finish flat after profit-taking, investors await US central bank policy decision</h1> Benchmark equity indices opened with marginal gains but turned volatile and ended flat as investors took profits following a sharp rally last week, while markets awaited the outcome of the US central bank policy meeting. The primary domestic indices fluctuated within a narrow range, with financials, consumer finance, auto, ports and utilities among the intraday gainers and major IT and pharmaceutical firms among the laggards. Regional Asian bourses traded higher and US markets were mixed. Last week saw a multi-day uptrend for domestic benchmarks and net foreign institutional inflows into equities. Global crude oil rose modestly.