"She has complaints of breathlessness due to chest infection", Bellview Nursing Home administrator Dr P Tandon said.

"But other than that, she is fine and stable," Tandon said adding there was no other complication.

However, 76-year-old Sen would be kept under observation in intensive care unit of the nursing home for 72 hours, he said.

The reclusive actress was admitted to the nursing home on Monday night.

As Sen has not come out of her private world ever since she quit acting decades back and guards her privacy zealously, the nursing home kept the news of her illness and admission a under a wrap.

This is the second time she has been admitted to a nursing home within six months.

Sen, who featured in on-screen romantic partnerships with late Bengali megastar Uttam Kumar from the 1950s to the 70s, had been admitted to the same nursing home in the second week of October last.