After more than six decades, 91-year-old rebel leader Thuingaleng Muivah has returned to his home village in India.
The Nagas want to bring home human remains which colonial administrators had removed from the country.
The Swan auction house, in Oxfordshire, had listed objects including skulls and shrunken heads.
A military operation and protests in the Indian state of Nagaland left 14 civilians dead last year.
Rights activists and ethnic groups in north-eastern India have called for the law's repeal for decades
Locals in Nagaland state demand punishment for troops who shot dead civilians, repeal of AFSPA law.
Indian security forces have killed 14 civilians in the north-eastern state of Nagaland in separate incidents.
Home Minister Amit Shah expresses "anguish" after troops fire on miners in the country's north-east.