The rupee plunged 68 paise to 64.72 against the dollar on Monday after early trends suggested that the BJP and the Congress are neck and neck in Gujarat Assembly sweepstakes after one hour of counting of votes.
The Congress is leading in 7 seats while the BJP is leading in 6 in the Himachal Pradesh Assembly polls as early trends poured in.
Besides, the American currency's strength against other currencies overseas weighed on the domestic unit, traders said. Meanwhile, US President Donald Trump's much-hyped tax cuts moved a step closer to reality.
More From This Section
The Sensex tumbled 867.34 points, or 2.59 per cent, to 32,595.63 and Nifty slumped 258.45 points, or 2.50 per cent, to 10,074.80 in early trade.