CLOSING BELL: 

After a gap-down start to Tuesday's session, the domestic equity markets staged a smart rebound to recoup most losses amid low-level buying in stocks. Sensex had plunged over 1,000 points, while the Nifty50 tested 16,850 level in early trade. That said, traders keenly eyed the two-day Fed policy review starting later in the day. This excessive volatility is likely to continue for a few more days until clarity emerges from the crucial Fed meeting, said an analyst. Here are the top highlights of today's session: