Sen is said to be on antibiotics and oxygen in the privately-run Belle Vue Clinic. Her diabetic parameter, too, is said to be fluctuating adding to the problem.
Sen was admitted to the clinic with respiratory tract infection and complaints of breathlessness.
Living a reclusive life for decades now, Sen was last hospitalized in 2012 for a fracture in the wrist. She was discharged after a surgery.
The clinic has formed a five-member-committee to monitor the health of the actress. The team is led by cardiologist Dr Subrata Moitra.
Beginning her career with the Bengali film 'Shesh Kothai' in 1952, Sen went on to receive a National Award for her performance in the 1955 Hindi film 'Devdas' and is the first Indian actress to be awarded at an international film festival - the best actress award for 'Saat Paake Bandha' in 1963 Moscow film festival.
But after her 1978 movie 'Pronoy Pasha' with Soumitra Chatterjee flopped, she disappeared from the public eye and even allegedly refused the Dadasaheb Phalke Award in 2005 preferring not to make a public appearance.
--ANI (Posted on 30-12-2013)