He was born on 5 March in Thannekumbura, Kandy, Sri Lanka as the third child in the family. He has one elder sister, one elder brother and one younger sister. In his little age, he was suffered with terrible asthma, so the family transferred to Colombo.

 

He is married to Kanchana Kariyapperuma, a music teacher. He met Kanchana during the stage play Arundathi and then from Saranga Nawen Awith. The couple has one daughter, Pujani Manikya, who was born on 12 October 2005 and one son, Chirath Gagan, born on 28 September 2007.

 

He entered drama career with the stage play Makulu Del staged in 1986 produced by Jagath Muthukumarana. At that time, he was a first year student at technical college, Werahera. Then he joined with Rupavahini Corporation for the children's program Kathandara Pituwa. He produced the program Balan Sabe Muthure telecast by Rupavahini. He also produced the stage play, Minisa.

 

Seneviratne started his film career with a major role in 2004 comedy film, Clean Out directed by Roy de Silva. Some of his popular cinema acting came through Sikuru Hathe, Ethumai Methumai and Super Six.

 

In 2007, he won the award for the Best Actor in a comedy role at Raigam Tele'es for the role "Sumanapala" in television serial Isuru Bhavana. In 2017, he won the Best Comedian award at Presidential Film Festival for the role in Paha Samath.

 

He hosts the program 4 Kendare with Mihira Sirithilaka as well as Hiru Super Dance with Shalani Tharaka and Kavinga Perera, both telecast on Hiru TV.