Shares of Biocon surged to a record high as the company plans to consider bonus issue.
The stock jumped as much as 9.69 per cent to a record high.
The stock is on track to record biggest intraday percentage gain since July 22, 2016.
The biopharma company plans to consider issue of bonus shares, according to an exchange filing on Monday.
More than 1.3 million shares change hands, nearly four times their 30-day moving average.
The stock is up 12 per cent this year up to Monday's close.