The next morning a friend alerted Singh to a reply in a window in the NCR building: "EMAIL?"
Singh said he "spent a lot on sticky notes" to spell out his email address in the window.
"I never expected them to continue the conversation, but they did, so it was pretty amazing for me," Singh told CNN.
He said he started email correspondence with NCR employees and eventually ended up receiving a summer internship interview offer from the company's vice president of IT.
Singh ended up getting the internship through a different route when he participated in the Georgia Tech's annual HackGT hackathon event. His team won the event, and they were offered company internships by NCR, which was one of the hackathon's sponsors.
