New Delhi, Jan 21 : Prime Minister Dr. Manmohan Singh underwent angiography as part of a series of heart-related tests at All India Institute of Medical Sciences
(AIIMS) today.

According to AIIMS sources, some blockages have been found in his heart. Doctors are contemplating the next course of action.

AIIMS Medical Superintendent Dr. D. K. Sharma said that the Prime Minister had come for an overall medical checkup on Tuesday, which was conducted by a team of doctors from various disciplines.

Dr Singh, who had earlier undergone a by-pass surgery, had complained of some chest pain after which a decision to carry out the tests was taken.

Dr Singh had cancelled his visit to Kolkata, scheduled for today, to attend the Asiatic Society''s post-bicentennial silver jubilee celebrations and inaugurate the 150th foundation day of St Xavier''s College. (ANI)