The National Investigation Agency on Friday summoned Prem Kumar Vijayan, a professor at the English department at Delhi University, pertaining to the Bhima Koregaon case. He is the second professor from the university to be questioned in the case in less than a month. The NIA has so far arrested 12 people in the Bhima Koregaon violence case. On July 28, the NIA had arrested Delhi University professor MT Hany Babu. Babu's students and supporters have raised several questions on his arrest and protested against it