The Indian equity benchmarks, the Sensex and the Nifty closed flat after a volatile session. The Nifty struggled to hold the 22,000 mark despite opening above it. The Sensex closed 34.09 points down at 72,152, while the Nifty closed 1.1 points higher at 21,930.50. About 1,954 shares advanced, 1,314 shares declined, while 63 stocks remained unchanged. One 97 Communications Ltd | CMP Rs 496 |