Born on May 18, 1932, Omana, cousin of legendary playwright, actor and theatre director N N Pillai, was a key player of Viswa Kerala Kala Samithy, the drama troupe founded by Pillai.
She played versatile roles in 32 plays and acted in two films.
Omana had won the state award for best theatre actress in 1977 and lifetime achievement award in 2001 conferred by the Kerala Sangeetha Nataka Academy.
Since Pillai's death, she had been staying with her nephew and film actor Vijayaraghavan at his residence in Olassa near here where she passed away yesterday.