The self-styled godman was questioned by the police for over seven hours yesterday. The younger brother of Daati Maharaj was also named by the victim in her complaint to the police.
He reached the Delhi Police's Crime Branch office this afternoon and his is being questioned, they said.
On Saturday, a Delhi Police team, accompanied by the rape victim, had visited the self-godman's ashram in Pali, Rajasthan, to gather evidence. The team failed to find him at the ashram.
The woman had filed the complaint against Daati Maharaj, his three brothers and a woman at the Fatehpur Beri police station here in south Delhi last Sunday. The case was later transferred to the Crime Branch.
The woman told the police that she had been a disciple of Daati Maharaj for a decade but after she was raped by him, she returned to her home in Rajasthan.
The Delhi Police had earlier issued a lookout circular against Daati Maharaj to ensure that he does not leave the country.
Follow NDTV for latest election news and live coverage of assembly elections 2019 in Maharashtra and Haryana.
Subscribe to our YouTube channel, like us on Facebook or follow us on Twitter and Instagram for latest news and live news updates.