India's celebrated historian Ramchandra Guha has been detained in the southern city of Bengaluru while protesting against the controversial citizenship law.
Video footage showed Guha being dragged by three policemen while giving an interview to a local media station.
"I am protesting non-violently, but look they are stopping us," Guha said before being surrounded by the police officials on Thursday.
Curbs on public gatherings have been imposed on several cities after some protests turned violent as demonstrators and police clashed.


US military says it's completed 13th consecutive night of strikes on Iran
India's youth leaders to talk with government but press on with nationwide protests
Spain declares national emergency over wildfires near Madrid and in Avila
Saudi-owned vessel targeted in Red Sea, crew safe, state news agency says
Rubio says US committed to helping end Ukraine war after meeting Lavrov
