The renowned Odia film director, whose movies won several National Awards, was:

Mrinal Sen
NiradMohapatra
Adoor Gopalakrishnan
Sabyasachi Mohapatra

The correct answer is: d) Sabyasachi Mohapatra.

Sabyasachi Mohapatra is an Indian film director, screenwriter, and producer who works in the Odia film industry. He is known for his films like “Aasha” (1992), “Bhumika” (1993), and “Anant” (1997). His films have won several National Awards, including the National Film Award for Best Feature Film in Odia.

Mrinal Sen was an Indian film director, screenwriter, and producer who worked in Bengali cinema. He is considered one of the most important filmmakers of Indian cinema. His films have won several National Awards, including the National Film Award for Best Feature Film in Bengali.

Nirad Mohapatra was an Indian writer, essayist, and critic who wrote in English. He is considered one of the most important writers of Indian literature. His works have been translated into several languages.

Adoor Gopalakrishnan is an Indian film director, screenwriter, and producer who works in Malayalam cinema. He is considered one of the most important filmmakers of Indian cinema. His films have won several National Awards, including the National Film Award for Best Feature Film in Malayalam.