Parakrama Niriella

In 2019, Niriella produced two stage plays titled Wangagiriya and Gira Panthiya. The play Wangagiriya is based on the short story by the same name written by Dharmasena Pathiraja in 1960s. The play Gira Panthiya is based on the short Illustration Parrot's Tale written by Rabindranath Tagore.

In 1974 Niriella studied at nalanda college Drama & Theater from the Art Center Theater Academy of the Lionel Wendt Memorial Center in Colombo. He started drama career with Gamini Haththotuwegama in 1970s in Sri Lanka's first street drama troupe. He worked as the street drama organizer in Haththotuwegama's street drama troop. On December 31, 1976. he produced his first stage play Sekkuwa which was played at Lumbini Theater. The play won several awards at the State Drama Festival in 1976. Niriella won the award for the Best script. In 1998, the play was staged as a new production. In 2017, a series of celebrations were held to celebrate the achievements of Sekkuwa in the drama industry in Sri Lanka. It was held on the 13 February 2017 at the University of Colombo University of Visual and Performing Arts at 4.00 pm. In January 2017, Sekkuwa was presented at the annual polymorphic International Drama Festival held by the Institute of Theater Performing Arts in Mysore, Karnataka, India. He was the chief guest on the opening day of the International Drama Festival.

In 2014, he won the awards for the best direction and Best Play at State Drama Festival for the play Hunuwataya, his own translation of Bertolt Brecht's "Caucasian Chalk Circle" . In 2016, Niriella produced the Tamil version of Bertolt Brecht's Caucasian Chalk Circle" translated by Dr.Kulanthai Shanmugalingam of Jaffna, with the title "Venkatti Vattam". On 13 January 2017, he inaugurated Bahuroopi international theatre festival.

In 1999, Niriella handed over an alternative theater program to the National Youth Services Council. But at that time it was not implemented due to the scarcity of the youth service council. Without any government funds, Niriella along with Udul Bandara Awusadahami took the responsibility for a plan for the mobile theater. On 29 July 2004, he created "Janakaraliya" Mobile Drama troupe Theatre of the people) with the help of HIVOS institute, Netherlands with 20 members. It is the first time that Sri Lanka drama use New Arena concept. The first play created by "Janakaraliya" is Andara Mal. He produced the play Mati Karaththaya which won many awards at State Drama Festival. For the first time in Sri Lanka drama history, a Tamil actor won the Best Supporting Actor award and Sinhalese actor wins best supporting actor in Tamil drama for the play Mati Karaththaya.

Niriella directed two feature films - Siri Medura in 1989 and Ayoma in 1995. Both films were critically acclaimed and won several awards at local film festivals. In 2009, Henry Jayasena granted the rights to play Hunuwataye Kathawa through a contract. His play Charandas often played outdoors in different setups without using theater lighting effects and stage designs. The play won the highest award at the 1983 Edinburgh Drama Festival in England. In 1985, his tele-film of 90 minutes durationKadaima won special jury prize from the Golden Crest International TV Festival of Poldiv, Bulgaria and then Transtel prize for the prix Futra International TV Festival of Berlin.

He continued to produce many stage plays such as Vinischaya in 1979 and Galileo in 1983. Then he produced Uththamavi in 1989. Afterwards, together with H. A. Perera, Niriella produced Warenthu in 1998.

In 1971, Niriella got the first job in the Sri Lankan Navy in Trincomalee in civil section.