IndusInd Bank shares jumped 6% to their day’s high of Rs 780 on the NSE on Wednesday after an external audit flagged discrepancies in its derivatives portfolio, estimating a negative impact of Rs 1,979 crore as of 30 June 2024. It has also projected a 2.27% post-tax reduction in its net worth for December 2024 due to these irregularities, as opposed to 2.35% assessed by the bank earlier.