LUCKNOW, July 16 -- The family of the 22-year-old drone innovator and scientist, who was found dead under mysterious circumstances in a five-star hotel in Lucknow, on Wednesday alleged that he had been receiving death threats over an Rs.85-lakh drone project and appealed to Prime Minister Narendra Modi and chief minister Yogi Adityanath to ensure justice. The deceased's younger brother broke down while speaking to reporters outside the post-mortem house and accused a Noida-based man of threatening the young innovator over a financial dispute linked to the project. "We suspect the role of a Noida-based man. My brother was working on an Rs.85-lakh drone project. About Rs.62 lakh had already been paid, but later the project was withdrawn. After cancelling the project, he started demanding the money back, sent legal notices and repeatedly threatened to kill my brother," he alleged. "We appeal to chief minister Yogi Adityanath and Prime Minister Narendra Modi to ensure justice," he said. Police did not confirm the allegations but said family's claims would be examined as part of the investigation. The young innovator was found dead on Tuesday morning inside his hotel room in the Vibhuti Khand area after staff alerted police when he failed to check out and did not respond to repeated knocks on the door. Police broke open the door and found him lying dead on the bed. Forensic experts examined the scene and the body was sent for the post-mortem examination. According to police, vomit was found on and around the bed, prompting investigators to consider possibilities including food poisoning or a cardiac event. Officials said the exact cause of death would be known only after the post-mortem and forensic reports were received. Assistant commissioner of police (Vibhuti Khand) Soumya Pandey said the deceased's belongings and food items were found inside the room and the forensic team collected evidence from the scene. The 22-year-old, a resident of Bijapur Asman Chhapra village in Siswa Bazar, Maharajganj district, had checked into the Lucknow hotel at around 1.30 pm on Monday....