Amnesty International said Kashmir's legislators should demand an independent panel be set up to identify the bodies, noting the same recommendation made last month by the Jammu-Kashmir State Human Rights Commission had yet to be acted upon.
The single and mass graves in the north of the disputed Himalayan territory contain 2,156 unidentified bodies and 574 known to be those of local residents, according to an August report by a state-run commission that reversed India's longtime insistence the dead were foreign militants killed in Kashmir's two-decade separatist struggle against Indian forces.
"The state government must also ensure that all past and current allegations of enforced disappearances are promptly, thoroughly, independently and impartially investigated," the group said late Monday, adding that anyone found responsible should be prosecuted.
Meanwhile, the commission has broadened its investigation to look into yet more unmarked graves allegedly containing another 3,844 unidentified bodies in the region's remote southwest _ near the heavily militarized line of control dividing Kashmir between nuclear rivals India and Pakistan.
Local rights groups have long alleged the graves might contain the bodies of thousands of civilians who vanished and were possibly killed by government forces over suspicions of collaborating with rebels.
Rebel groups began fighting in 1989 against Indian rule, and more than 68,000 people _ most of them civilians _ have been killed in the uprising and subsequent Indian crackdowns. The separatists want either independence for Kashmir or a merger with Pakistan.