The health condition of music maestro Ustad Rashid Khan, who has been undergoing treatment at a Kolkata-based hospital for prostate cancer, deteriorated and is currently "very critical", an official of the medical establishment said on Tuesday.

The 55-year-old musician is on ventilation at the ICU and is on oxygen support, he said.

"Khan's condition is very critical and he has been put on ventilation at the ICU. He is on oxygen support as well. Our doctors are keeping a close watch on him," the official told PTI.

The musician's health condition deteriorated following a cerebral attack last month.

Khan, who belongs to the Rampur-Sahaswan Gharana, is the great-grandson of gharana founder Inayat Hussain Khan.

Except for the headline, this story has not been edited by The Telegraph Online staff and has been published from a syndicated feed.