Radhika Vemula wanted to hold a demonstration inside, but was prevented from entering the HCU campus, HCU Chief Security Officer TV Rao told PTI.
"She wanted to hold a dharna inside the campus. We stopped her from entering. She and around 20 students then sat on a dharna in front of the HCU gate," Rao said.
Raja Vemula, the younger brother of Rohit, said his mother wanted to meet the students who were injured yesterday in a police lathicharge.
The protesting students raised slogans against HCU Vice- Chancellor Appa Rao Podile, demanding his immediate removal from the post. They also sought the release of students and faculty members arrested in connection with yesterday's vandalism of the VC's lodge and stone-pelting.