The murder came to light when people reached the temple on Tuesday morning and saw the blood-soaked bodies.
The deceased have been identified as Jagdish (55) and Shersingh (45) of Pagauna village.
According to the police, one person had been detained in connection with the crime. He had stolen an article from the two sadhus. The youth, a drug addict, was pulled up for his act, they said.
Chief Minister Yogi Adityanath has taken cognizance of the incident and directed the district officials to reach the site of crime and inform him of the investigations. He has also ordered strict action against the accused.
Further investigations are underway and additional forces have been deployed in the area.
Priyanka demands probe:
Congress general secretary Priyanka Gandhi Vadra alleged that 100 people have been killed in Uttar Pradesh in the first 15 days of April and demanded a thorough probe in the cases as well as into the "merciless" killing of two priests in Bulandshahr..
"100 people have been killed in Uttar Pradesh in the first 15 days of April. Three days ago, bodies of five members of the Pachouri family in Etah were found under mysterious circumstances. No one knows what happened to them," she said in tweets in Hindi.
"Today, two sadhus sleeping in a temple in Bulandshahr have been killed mercilessly.There should be a thorough probe into such heinous crimes and no one should politicise these incidents at such a time," she said.
Do not communalise like Palghar, says Shiv Sena
Shiv Sena Rajya Sabha MP Priyanka Chaturvedi took to Twitter and wrote, "Terrible news, I expect the UP government will take stern action. Hope some sections of the media and keyboard warriors, don't attempt to communalize this issue and blame the Chief Minister at a time when the state and the country are battling Covid."
Senior Shiv Sena leader and party MP Sanajy Raut also condemned the murder of the two sadhus and said, "Terrible! killing of two sadhus at a temple in Bulandshahr, UP, but I appeal to all concerned to not make it communal the way they tried to make Palghar, Maharashtra incident."
Palghar incident: lynching of Sadhus
Two seers and their driver were lynched by a mob in Kasa police station limits in neighbouring Palghar district while they were on their way to attend a funeral in Surat in Gujarat amid the lockdown for the coronavirus outbreak.