The police, however released them within minutes after a background check.
As Delhi remains on high alert after various terror strikes across the world and in view of the coming Republic Day celebrations, worshippers at the temple raised an alarm as soon as they saw the youth clicking selfies thinking that they were taking pictures of the temple premises.
Two of the youth were Hindu while their Muslim friend was wearing a skull cap, said a police official.
"They took the youths to New Delhi area's Connaught Place police station from were they were released after brief questioning," said a police official.