Aju Varghese was born to Varghese P. K. and Celiene Susan in Thiruvalla in Kerala. He has a younger sister Anju. Aju married Augustina on 24 February 2014. They have twins: a girl named Juana and a boy named Evan born on 28 October 2014. They later had a second set of twins - Jake and Luke - on 30th Sep 2016.
Aju attended Rajagiri High School, Kalamasserry and later Bhavans Adarsha Vidhyalaya, Ernakulam. He did his Bachelor's in Electronics and Communication Engineering from KCG College of Technology, Chennai. He worked in HSBC in Human Resources, Chennai. It was during that time he was called by Vineeth Sreenivasan, his college friend, to play one of the lead roles in his directorial debut Malarvadi Arts Club, and later in Thattathin Marayathu. In the meantime,