Mumbai, May 4 -- Market chatter on changes to capital gains taxes on equities - adding to election jitters - dragged India's benchmark equity indices to their lowest in three weeks, before finance minister Nirmala Sitharaman dismissed what she called "pure speculation". This, after the Nifty 50 opened higher on Friday, clocking a record intraday high of 22,794.7 points, until it ended the day's trading in the red. The BSE Sensex fell over 700 points, ending the day at 73,878.15. P16...