Prime Minister Manmohan Singh [Images], who underwent a coronary by-pass surgery, is recovering well, doctors attending on him said on Monday.

The 76-year-old Prime Minister is "recovering well and his vital parameters are stable," Dr Vijay D'Silva, who is taking care of Singh in the ICU at the All India Institute of Medical Sciences, said.

Referring to the prime minister's diet, D'Silva said Dr Singh had taken coconut water and porridge on Monday morning.

Five grafts were carried out to overcome the blockages to Dr Singh's heart at AIIMS on Saturday.

A team of doctors from the Asian Heart Institute, Mumbai [Images], had performed the over 11-hour-long operation on the prime minister. They were helped by three AIIMS doctors and several support staff.

Dr K S Reddy, personal physician to the prime minister, had on Sunday said that in four weeks, Dr Singh can do virtually all work and could be fit even for a public meeting.

The date of discharge has not been finalised, but considering his progress, the doctors do not think that Dr Singh would have to remain there for long, he had said.

Reddy had said that the Prime Minister would remain in the hospital at least for another five to six days.