What are some famous Tamil plays, and what makes them special?

Tamil theatre boasts a rich history dating back centuries. Here are a few famous tamil play with their examples and their unique aspects:
"Silappadhikaram" by Ilango Adigal (5th century CE) - This epic poem, later adapted for the stage, tells the tale of Kannagi, a woman known for her unwavering devotion and fierce sense of justice. The play's exploration of themes like social injustice, love, and revenge continues to resonate with audiences today.
"Yaar? Enna? Eppadi?" by P.S. Ramakrishnan (1970s) - This thought-provoking play delves into existential questions like "Who am I?", "What is the meaning of life?", and "How should we live?". Its minimalist approach, relying heavily on dialogue and audience introspection, sparks critical thinking and philosophical discussions.
"Naalai Namadhe" by K. Balachander (1988) - This poignant social drama explores the complexities of family relationships, caste dynamics, and the changing social landscape of India. The play's emotional depth, relatable characters, and powerful dialogues leave a lasting impact on viewers.
"Madhavi" by T. Jayaseelan (1990s) - This play is based on the life of medieval poet Avvaiyar, known for her wit, wisdom, and social commentary. The play celebrates feminism and highlights the contributions of women to society and literature.