New Delhi: Three people were killed and several wounded as protests swept at least 10 states against the new citizenship law of the Centre. Almost all states denied permission for the rally, but the demonstrators challenged police and a lockdown across Uttar Pradesh, parts of Delhi, Karnataka, and Madhya Pradesh. In Mangaluru, where curfew has been declared, two persons died in police firing and 20 policemen were injured. One person died in Lucknow and three others were injured. In Delhi, hundreds were briefly taken into custody, including activists and opposition leaders. The Delhi-Haryana border was sealed for eight hours, hitting road traffic and delaying flights.