More than 1,500 people were allegedly killed in a wave of extra-judicial executions by security forces in Manipur between 1979 and 2012.

Last year, in a landmark ruling, the Supreme Court asked relatives of the victims and activists to collect information on the killings.

The court will rule in July whether to order an official investigation which could lead to convictions.

BBC's Soutik Biswas travelled to Manipur to find out more.