"We tried our best but failed. He passed away at around 3:45 PM," an official of the private hospital where Khan was admitted said.
The classical singer, who belongs to the Rampur-Sahaswan Gharana, is the great-grandson of gharana founder
"I heard about his death. This is a great loss for the entire country and the entire music fraternity. I am in a lot of pain as I still can't believe that
The chief minister said Khan will be given a gun salute and state honours before his last rites are performed on Wednesday.
"His body will be kept at a mortuary today. It will be taken to Rabindra Sadan on Wednesday where his admirers can pay him last respects," she said.
The musician was on ventilation. His health condition deteriorated following a cerebral attack last month.