Bihar Police have arrested the prime accused in the attack on Vijendra Nath Tiwari, elder brother of actor Pankaj Tripathi. The accused, Rajesh Sah, was apprehended following a special operation by the Gopalganj Police. Investigators say the assault may be linked to a long-standing land dispute and personal rivalry. Police have intensified the probe to identify other suspects, while the victim remains stable and out of danger.