Dinesh completed his high school at the Dhanalakshmi Higher Secondary School in Washermenpet, Chennai. After graduating from college, he tried his luck in cine field from 2010. After playing minor roles in Aadukalam and Mouna Guru, Dinesh made a breakthrough appearing in Attakathi (2012). The film performed well commercially and also won positive reviews, with a critic from Rediff.com noting "he's an actor of great promise". Similarly a critic from Sify.com noted Dinesh "diverts your attention from the film's little flaws and spellbinds you with an endearing act that is Attakathi's biggest strength", adding that "Dinesh has come out with easily one of this year's most confident and assured performances." After cameo appearances in Ethir Neechal and Pannaiyarum Padminiyum, he was seen in a lead role again in Cuckoo produced by Fox Star Studios. His performance as a visually challenged man was praised by critics. Sify wrote "the film belongs to Dinesh, who has come out with a riveting performance" and called it "the best ever blind act since Kamal Haasan's Raja Paarvai. IANS too compared Dinesh to actor Kamal Haasan, stating "Dinesh is probably the next Kamal Haasan of the industry". Rediff wrote, "Dinesh has given a performance of the lifetime, his character is such a unique blend of vulnerability and defiance that every scene is worthy of praise" and The Times of India felt that he was "superbly natural as Tamizh".He was next seen in Thirudan Police directed by debutant Caarthick Raju. His first 2015 release was Tamizhuku En Ondrai Azhuthavum. Dinesh's future projects include Vaaraayo Vennilaave, Visaranai, Ulkuthu and Oru Naal Koothu