Sensex witnesses year's 2nd biggest fall, back at January level

From an intra-day low at 72,334, sensex closed at 72,404, down 1,062 points. It was the second biggest fall this year. Nifty lost 345 points to close at 21,958 points. "Investors turned risk averse in the ongoing poll season and further lightened equity exposure to avoid being caught off guard," said Prashanth Tapse, Senior VP (Research), Mehta Equities.