Also saving the trouble of going through the qualifiers are India's leading player Saketh Myneni who is on a comeback trail after an injury lay-off and Sumit Nagal.
The fourth and last wild card along with the two special category slots will be announced tomorrow.
Suraj, who grew up playing practicing wall tennis in Mysuru, has taken huge strides and was one of the top juniors players in India.
"I am glad that I have got a wild card. I shall try to justify the gesture," said the 22-year-old.
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Meanwhile, Sumit, a winner in the Junior Wimbledon Doubles in 2015, has been consistent with his performances in the ITF and Challenger circuit. He is also the winner of the indoor Asian Games gold medal.
Bengaluru will be the final stop of the 5-legged ATP sojourn in Asia with Vietnam hosting two of them, China and Pune (currently underway) hosting one each.
As many as 22 players earned a direct entry with four wild cards, four qualifiers and two special category slots making up the draw of 32.
Three other Indians - Yuki Bhambri, Prajnesh Gunneswaran, and Ramkumar Ramanathan - have already booked a slot in the main draw.