Doctors in Nepal say the health of Prime Minister Girija Prasad Koirala has improved after he was admitted to hospital complaining of chest pains.
Mr Koirala is said to be suffering from a chest infection
But the 84-year-old is expected to remain in the Gangalal Heart Centre in Kathmandu for at least two more days.
Mr Koirala is said to be suffering from a chest infection, but his condition is not thought to be serious.
He was appointed prime minister in April, but has experienced poor health in recent months.
He would not be able to attend parliament on Tuesday, a family member said.
"We have advised the cancellation of his public commitments for two days," Mr Koirala's doctor, Madhu Ghimire, told reporters.
"He is in a stable condition," another doctor said.
Mr Koirala, who is the leader of the country's largest political party, the Nepali Congress, was sworn in as prime minister after King Gyanendra agreed to reinstate parliament.
But he was unable to join in celebrations because he was suffering from serious respiratory problems.
He is said to have recently given up smoking on the advice of his doctors.