The Bank Nifty index jumped 3.7 per cent last week, moving out of the narrow range-bound movement between 21,400 and 21,800. On Tuesday, the index surged in early hours and recorded a new high of 22,492. But after witnessing selling pressure, the index started to decline giving away its intra-day gains and is currently trading at 22,349 levels. The index faces resistance ahead of 23,500 levels...