Sania Mirza and Mahesh Bhupathi rallied to beat the Canadian duo of Aleksandra Wozniak and Daniel Nestor and seal a semi-final berth in the mixed doubles event at the Australian Open in Melbourne on Wednesday. The unseeded Indian pair overcame a first-set lapse to carve out a 3-6, 6-4, 10-5 win in one hour and 15 minutes.