Nagal, ranked 262 in the world, will meet fellow countryman R Virali-Murugesan in the first round.
Siddarth Rawat is seeded second in the singles draw, followed by Colin van Beem of the Netherlands and Lucas Gomez of Mexico.
A total of 14 players from 10 countries, including the Netherlands, Switzerland, Mexico, U.S.A. And Ukraine among others are participating in the tournament.
The following players were awarded a wild card into the singles main draw: Haadin Bava, Dhakshineswar Suresh, S D Prajwal Dev and Mohammed Fahad.
Li-Wie Tan (Taipei) (8) bt Kento Tagashira (Japan) (13) 6-2, 4-0 (retd); Kunal Vazirani bt Faisal Qamar 7-6(6), 4-6, 6-4; Jessy Kalambay (SUI) (5) bt Suraj R Prabodh (9) 4-6, 7-6(3), 6-4; Vijayant Malik (7) bt Sai Saran Reddy 6-4, 6-2.
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