BETTIAH, June 22 -- The four companions of Prince Yadav, brother of Gyan Bindu Academy director Raushan Anand, will remain in the custody of Nepal police as part of an ongoing investigation into Yadav's death at a hotel in Morang district of Nepal, officers said on Sunday. Morang SP Kabit Katuwal said a progress report of the case was sent to chief district officer and police will continue questioning Ankit Kumar Yadav, 25, from Saharsa; Raushan Yadav, 27, from Supaul; Lattu Yadav, 21, and Jayram Yadav, 30, both from Araria. "We can keep them in custody for up to 25 days from the date of their initial detention as per the Nepal law while investigating the circumstances surrounding Yadav's death. Moreover, the visceral report is still awaited," Katuwal said, refusing to divulge further details. Nepal and Patna police are working in coordination to ascertain the sequence of events leading to the death of Yadav, one of the accused in the firing incident outside Khan Global Studies at Musallahpur on June 2 in Patna. His death has given a new twist to the ongoing probe. According to Nepal police, Yadav and his four associates came to Morang's Biratnagar on June 3 and stayed first at the Metro City hotel in front of Bypass in the wake of a dispute between Roushan Anand and Faisal Khan. Two days later, they shifted to Shubh Hotel. Yadav was found dead at the hotel on June 13. After post-mortem report fell silent on the cause of death, Nepal police sent his visceral sample to a laboratory in Dharan, a sub-metropolitan city in Sunsari district of Koshi province in eastern Nepal, for examination on June 16....