Police say rioters set fire to the homes of seven lawmakers to protest new legislation defining who can claim to be from the northeastern Indian state of Manipur.

One person died while trapped in a burning house Monday night, and two died when police fired to disperse the arsonists.

Police said Tuesday they had imposed a curfew and deployed paramilitary forces after the violence erupted in C'hurachandpur town 70 kilometers (42 miles) southwest of the state capital of Imphal.

Lawmaker N. Biren Singh said the law demanding people prove residence since 1951 is aimed at keeping "outsiders" including migrants from settling in the state, located between Bangladesh and Myanmar.

The protesters say that limit excludes many who don't have documents or whose families arrived after that date.