Ranjeet was pushed to the corner in the first set by Xin Gao of China but finally prevailed 7-6 (9) 6-1 11-9.
Prashanth outplayed Shabaaz Khan 6-1 6-4 while seventh seed Sumit Nagal got the better of Siddarth Rawat 6-4 6-2.
In other matches, Tejas Chaukulkar outlasted Niki Poonacha while Chandril Sood managed to out play Abdullah Shaikh in three sets.
Prajnesh Gunneswaran was too good for Lakshit Sood while Prajwal Dev was too steady for the erratic Ausralian Zach Itzstein (AUS).
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Results: Singles Main draw (First round):
Tejas Chakulkar bt Niki Poonacha 6-4, 1-6, 6-3, Borja Rodriguez Manzona (Spain) bt Rishabhdev Raman 6-2, 7-6(2), V M Ranjeet bt Xin Gao (Chn) 7-6 (9), 6-1, Prajnesh Gunneswaran bt Lakshit Sood 6-2, 6-2, Chandril Sood bt Abdullah Shaikh 6-2, 6-7(1), 6-3, Vijay Sundar Prashanth bt Shabaaz Khan 6-1, 6-4, Sumit Nagal bt Siddarth 6-4, 6-2, Prajwal Dev bt Zach Itzstein (Australia) 7-5, 6-3.
Doubles Main draw (Quarterfinals): Jeevan Nedunchezhian and Vijay Sundar Prasanth bt Jayesh Punglia and Nitin Kumar Sinha 6-3, 6-2, Lakshit Sood and Chandril Sood bt P C Vignesh and Fahad Mohammed 6-3, 6-7(6), 10-8, Kaza Vinayak Sharma and Mohit Mayur bt Rashein Samuel and Tejas Chakulkar 6-2, 6-3, Markos Kalovelionis and Timur Khabibulin bt Ajay Selvaraj and Rishabhdev Raman 6-7(5), 6-1, 13-11.