Angry mobs demanding government benefits have rampaged through the streets in several towns in northern India, burning vehicles and public buildings.
The violence erupted in a number of towns in Haryana State on Saturday as protesters burned dozens of vehicles, shopping malls, and rail stations. They also attacked the homes of lawmakers.
Hundreds of security forces were deployed to contain the violence and were ordered to shoot at those inciting violence without warning.
Police authorities reported at least fours deaths as security forces opened fire on the angry crowds; 78 others were also injured during clashes since Friday.
The violence persisted for a second day on Saturday.
According to police, the protesters also blocked a highway linking New Delhi to major cities in the north.
Helicopters were used to fly in backup military troops to the flashpoint districts of Rohtak, Bhiwani and Jhajjar, where a curfew was being enforced.
Violent protests were first launched by members of the Jat agricultural community, who are demanding government benefits at federal and state levels, including guaranteed employment as well as university placements.
Talks between community leaders and representatives of the state government on Friday failed to produce an agreement.
India’s Constitution includes a system of affirmative action schemes aimed at assisting people in the lowest castes to overcome historical discrimination.