Nakul Aggarwal earned a B.Tech in computer science from IIT Bombay. He and Ritesh Arora are batchmates from the same institute.
They started BrowserStack in 2011. The product came out of a consulting project called Downcase and began as a way to test websites on Internet Explorer.
As co-founder and CTO, Aggarwal heads technology strategy. BrowserStack became a unicorn in 2021 after a $200 million Series B at a $4 billion valuation.
In April 2025 he and Arora pledged Rs 100 crore to IIT Bombay for hostel facilities. The Economic Times named him in its 40 Under Forty list in 2023.