In this photo by Altaf Qadri, a student shouts slogans demanding the resignation of India's education minister while being detained by police at a protest in New Delhi. The protesters accuse Hyderabad University's vice chancellor along with two federal ministers of unfairly demanding punishment for five lower-caste students involved in a clash last year with students supporting the governing Hindu nationalist party. The five lived in a tent outside the gate of the university since their suspension Dec. 21, and one of the students, Rohith Vemula, died in what police said was a suicide. They are investigating whether the actions by the officials contributed to the 26-year-old doctoral student's death. He belonged to the Dalits, lowest in the Hindu caste hierarchy. India outlaws discrimination by caste and sets quotas at universities and in jobs to overcome discrimination, but caste remains influential in society.