A sizzling performance by Zaheer Khan in the second Test here on Tuesday helped India to a crushing 320-run win against Australia and go 1-0 up in the four-Test series.The left-arm paceman, 30, picked up three wickets, two of them on the trot, on the fifth and final day to wrap up the Australian second innings on 195 with more than two sessions to spare.This was India's biggest Test win by runs ever and their 12th victory at home against Australia out of 38 matches.Zaheer's effort capped an out