Deo, a 2013-batch officer, was posted as deputy director at Rajasthan Police Academy (RPA), a police spokesperson said.
He had fallen from a height in January this year, as the chair he sat on broke down, while serving his duty at Brahma Temple in Ajmer district.
He sustained grievous head and spinal injuries, the spokesperson said.
He was admitted to a government hospital in Pushkar and was referred to Fortis Hospital. He was later shifted to Imperial Hospital where he breathed his last.
Deo came in limelight last year when he had slapped a BJP worker in Kota for his alleged misbehavior.