London Olympics bronze medallist, Saina reached the second round with a 21-7 21-9 thrashing of Matilda Petersen of Sweden in just 28 minutes to set up a clash with Russian Natalia Perminova at Babu Banarasi Das Indoor Stadium here.
Saina was in complete control throughout the match and won seven points on the trot in both games to force her Swedish opponent into submission.
Among others in men's singles, second seed Ajay Jayaram, third seed RMV Gurusaidutt, fourth seed Anand Pawar, sixth seed K Srikanth, seventh seed H S Prannoy, eighth seed Sourabh Verma, 11th seed Sai Praneeth B, 14th seed Arvind Bhat, 16th seed Subhankar Dey and young Aditya Prakash -- all reached the pre-quarters. 13th seed Malaysian Iskandar Zulkarnain Zainuddin also reached the third round.
Guru had a good day in the court as he first defeated Velavan Vasudevan 21-10 21-10 and then sent packing Vipul Saini 21-11 21-11 in another match.
Sourabh too had an easy outing today as he beat Suraj Rayadurga 21-14 21-11 and then defeated Abhishek Yelegar 21-15 21-11 to reach the pre-quarters.