Nandrajog, runner-up in the 2006 nationals and top seed in the qualifiers, warmed up for sterner tests ahead when he eased past upcoming Mumbai junior Shreyas Mehta 11-2 11-2 11-2.
Suchde, seeded behind Nandrajog, had things very much in control while sailing past Aditya Agarwal 11-3 11-6 11-2.
Also through was 3/4 seed Adhitya Raghavan who outclassed Saleem Rashid Ganaie 11-3 11-2 11-4.
Hiteshwar Singh Riar of Chandigarh prevailed over Ashray Ohri of Telangana 11-7 4-11 11-9 11-4 while Mohammad Shafi Bhat overcame his J and K state mate Asif Manzoor Gania 11-8 8-11 14-16 13-11, 11-9.
Men's qualifying is set to continue tomorrow before the main draw games take place from July 14.
Reigning men's champion and 10-time winner Saurav Ghosal, the world no. 10, and defending women's champion and 14-time winner Joshana Chinappa, world No. 19, are the title-favourites who are expected to face stiff fight from former champions Harinderpal Singh Sandhu and Dipika Pallikal respectively.