UP Police is investigating the death case of Mahant Narendra Giri. So far three people have been detained. According to sources, a written agreement between Narendra Giri and his disciple Anand Giri was recorded on May 26. Three people - Sushil Mishra, Indu Prakash Mishra and OP Pandey - were present at the time. All three will be called in for questioning by the UP police.