New Delhi, Dec 21 (IANS): Congress president Sonia Gandhi, who is admitted to a hospital here for an infection in her lower respiratory tract, is feeling better, the hospital said Sunday.

"Mrs. Gandhi is feeling better and her condition is stable. She today (Sunday) underwent breathing exercises without any problem," a doctor at the Sir Ganga Ram Hospital said in a statement.

Gandhi was admitted under the care of Arup Kumar Basu, senior consultant and chairman of respiratory medicine. He is leading a team of doctors who are closely monitoring the Congress chief.

Gandhi's medication will continue until she is discharged from the hospital.

"She will remain under observation of the doctors until we get a proper sign of her recovery," the doctor said.

According to doctors, the problem is quite common during winter.

There has been a lot of speculation about Sonia Gandhi's health after her 2011 surgery in the US where she spent about five weeks and reportedly underwent a successful surgery at New York's Memorial Sloan Kettering Cancer Center.

She was also treated for mild asthma for six days in 2008.