In spite of treatment, on 5 September, he was re-admitted to hospital due to pneumonia and died in the early hours of 6 September 2021, one week before his 69th birthday. In August 2021, Perera tested positive for COVID-19 and rumors of his death started circulating on social media. His nephew, Lanthra Perera is also a musician and the founder-member of the band "Doctor". His younger son, Gayan is a musician who formed the band "Daddy". Eldest son Sajitha is married to the daughter of famous singer Dalreen Suby. He had two sons: Sajith and Gayan, and two daughters: Rehana and Manisha. When Kulatunga was aged 16, she and Perera got engaged. On 25 October 1981, Perera was arrested by police in Homagama following reports from Kulatunga's parents that he had abducted her the case was later dropped. Kulatunga's father, Mahinda, is a sub-inspector with the Sri Lanka Police. She also meets Sunil while he is attending a concert. Perera was married to Geetha Kulatunga who was born on 18 March 1967, whom he met while she was studying for her O/L classes. When he was 11 years old, he became a guitarist. During his school days he was also a member of the college band. Sebastian's College, Moratuwa until grade four and then until finishing school in the St Peter's College, Colombo. Anton was a clerk at the government Postal Department and also run a sweet production company called "Glucorasa". His father, Anton Perera, was in the military before becoming a musician and forming the original Gypsies band. Perera was born on 14 September 1952 in a family with ten siblings.