Indian swimmer Srihari Nataraj clocked 54.68s to qualify for the semifinals of the men's 100m backstroke event of the Commonwealth Games here on Friday. The 21-year-old from Bengaluru was the third fastest swimmer in his heat and fifth fastest overall. If he had clocked his personal best of 53.77s he would have topped the heats. The fastest swimmer in the field was South Africa's Pieter Coetze who clocked 53.91. However, seasoned Sajan Prakash and debutant Kushagra Rawat failed to advance to the semifinal of their events respectively.