Who is Rohit Vemula and why are Dalit activitists wants to relook into this case?

Who is Rohit Vemula and why are Dalit activitists wants to relook into this case

Who is Rohit Vemula and why are Dalit activitists wants to relook into this case?
Who is Rohit Vemula and why are Dalit activitists wants to relook into this case