IIT alums became friends on Street. Then one turned on other

Former Goldman banker Brijesh Goel was arrested for insider trading. His friend, ex-Barclays trader Akshay Niranjan, is co-conspirator, who turned on his buddy

They were business school buddies who landed at top Wall Street firms — Goldman Sachs Group Inc. and Barclays Plc — lived for a time in the same Manhattan high-rise, played squash regularly and partied overseas together.

And then one of them wore a wire and recorded his friend allegedly asking him to delete incriminating text messages.

Former Goldman banker Brijesh Goel was arrested last month for insider trading. His friend, ex-Barclays trader Akshay Niranjan, is “co-conspirator 1” in the criminal complaint against Goel, and the man who turned on his buddy, according sources.

“F---... This we need to delete,” Goel, 37, allegedly