His portrayal of Neal Sampat on the HBO television series The Newsroom (2012–2014) earned him a NAACP Image Award nomination for Outstanding Supporting Actor in a Drama Series.In 2015, Patel starred as the mathematician Srinivasa Ramanujan in the biopic The Man Who Knew Infinity, and the following year he played Saroo Brierley in the drama Lion (2016).So, here we have for you, the exciting journey of Ravi Dubey and Sargun Mehta from being colleagues to becoming soulmates. Sargun was a part of the show since the beginning and when she was shown the look test of Ravi, who was to play a mentally retarded character, she found him weird.But, her mind was blown away when he came to meet her in person. So, I was expecting this really odd looking guy on the sets.
He also worked at a call centre for a day and in a hotel, where he washed dishes.
Patel later attended Whitmore High School, receiving an A* in GCSE Drama for his "self-penned portrayal of a child in the Beslan school siege".
His drama teacher Niamh Wright has stated, "Dev was a gifted student who quickly impressed me with his innate ability to communicate a wide variety of characters imaginatively and creatively.
His breakthrough came in 2008 with the leading role of Jamal Malik in Danny Boyle's drama Slumdog Millionaire, which won the Academy Award for Best Picture, and for which he was nominated for the BAFTA Award for Best Actor and the SAG Award for Best Supporting Actor.
Patel went on to star in the highly successful romantic comedy The Best Exotic Marigold Hotel (2012) and its 2015 sequel, the fantasy film The Last Airbender (2010), and the science fiction crime thriller film Chappie (2015).