"My grandma is better. Thank you for your prayers...Keep praying," Raima tweeted Saturday.
The veteran actress, 82, is undergoing treatment for a chest infection at Belle Vue Clinic since Dec 23. Suchitra was taken to the critical care unit (CCU) after her condition deteriorated Dec 28 night.
She is known for her performances in films like "Deep Jwele Jaai" and "Uttar Falguni" in Bengali as well as Hindi movies "Devdas", "Bambai Ka Babu" and "Mamta". She won the best actress award for "Saat Paake Bandha" at the Moscow film festival in 1963.
Suchitra, who is actress Moon Moon Sen's mother, quit acting in 1978. Since her retirement, she meets only a few people including her daughter as well as grand-daughters Raima and Riya Sen.