Ranganathan has made numerous appearances on television comedy panel shows and has been a regular panellist on The Apprentice: You're Fired!, Play to the Whistle, and The Museum of Curiosity.

He completed his first major tour, Irrational Live, in 2016; he performed in large venues such as the Hammersmith Apollo.

[8] He then attended Crawley's state sector Hazelwick School,[9] before studying mathematics at Birkbeck, University of London.

[11] Ranganathan co-presented It's Not Rocket Science alongside Rachel Riley and Ben Miller in October 2013.

[14] He appeared on The Great British Bake Off: An Extra Slice in 2014, during which he presented his home-made vegan chocolate brownies.

[17] In 2018, Ranganathan joined Season 13 of A League of Their Own[18] and starred in his own ten-episode docu-comedy called Just Another Immigrant that premiered on Showtime 8 June 2018.

[19] He has been a guest on several episodes of 8 Out of 10 Cats Does Countdown,[20] and has appeared on Would I Lie to You?, Holby City, Soccer AM, Russell Howard's Good News, Sweat the Small Stuff, The Last Leg, Virtually Famous, Have I Got News for You, QI, and Mock the Week.

[22][23] On 20 April 2024, he replaced Claudia Winkleman as the host of the lunchtime Saturday BBC Radio 2 show.