A 35-year-old NRI businessman was found dead at the five-star Taj Palace in Delhi's Chanakyapuri (File)

A 35-year-old NRI businessman was found dead at the five-star Taj Palace in Delhi's Chanakyapuri, the police said on Sunday.

The businessman, Munni Jaitely, was found dead in his hotel room on the sixth floor of the hotel. The staff realised something could be wrong when he didn't respond to his father's phone calls.

"His father called the hotel reception and requested them to check his son's status. The hotel staff tried to connect with Jaitely through the landline, but didn't succeed," police officer Eish Singhal told IANS.

"Later, the hotel manager went to the sixth floor room of Jaitely and knocked at the door. When he didn't get any response, the room was opened with the duplicate key. Jaitely was lying unconscious," Mr Singhal said.

"They took him to a hospital where doctors declared him brought dead. The police was informed by the hotel manager," the officer said.

Initial investigations suggest no sign of anyone - hotel staff included - visiting the room between Friday night and Saturday morning, per CCTV footage. "The deceased's mother didn't suspect murder," said Mr Singhal.

An autopsy is expected to give some clue on the cause of death, said the police.

The businessman, who was not married and stayed with his family in the US, was a regular visitor to the national capital due to his business. He had come to stay at the hotel on Thursday, the officer said.