The 80-year-old playwright went through treatment at Prayag Hospital in Pune for five weeks. He was suffering from myasthenia gravis, a neuromuscular disease leading to fluctuating muscle weakness and fatiguability.
Tendulkar received many awards for his excellent work. He was conferred Maharashtra State government awards three times, Maharashtra Gauruw Puraskar, Sangeet Natak Akademi Award and Sangeet Natak Akademi Fellowship. He won the National Film Award for Best Screenplay for Shyam Benegal's film Manthan and wrote the screenplays of films like Nishant, Akrosh and Ardh Satya. He was also a recipient of Padma Bhushan award from the Government of India for his literary accomplishments.