Hundreds of activists from various political parties and student unions were on Monday detained when they tried to stage a protest against the bungling in the Intermediate results.
The police claimed that the activists were taken into custody to ease the crippling situation and were let off in the evening.
Protesters tried to lay siege to the Board of Intermediate Office and the Pragathi Bhavan, official residence of Chief Minister K. Chandrasekhar Rao in the morning.
Hyderabad Police Commissioner Anjani Kumar said 450 people were taken into preventive custody. “Almost 280 people were from different parts of the State including Adilabad, Nizamabad and Karimnagar,” he said.