Sensex, Nifty trade flat ahead of US Fed meet; tech pack shines

Benchmark indices Sensex and Nifty traded largely flat on Tuesday, while IT stocks advanced, led by Infosys, even as investors weighed a sharp sell-off in technology stocks across Asian and U.S. markets against a steep decline in oil prices amid growing optimism over a possible U.S.-Iran deal. Attention now turns to the U.S. Federal Reserve meeting, which begins later today.