Ranganathan was raised in Crawley, West Sussex. He is married and a father of three. In 2014 Ranganathan’s wife, Leesa, was admitted to the Edinburgh Royal Infirmary during The Edinburgh Fringe Festival where Ranganathan was appearing and gave birth to their son.
Prior to his comedy career, he was a freestyle rapper under rap name “Ranga” and once reached the finals of the UK freestyle competition.
Ranganathan taught maths and was head of sixth form at Hazelwick School in Crawley before becoming a professional comedian in 2012. His wife was a drama teacher at Hazelwick.
He is of Sri Lankan Tamil descent and a supporter of Arsenal F.C.
Ranganathan is a vegan and was raised Hindu. His mother has said that he “always prays before he leaves the home”, although Ranganathan describes himself as “not massively spiritual”.