A village house of Bodo resident burnt by the tribal villagers as they retaliate after attacks by National Democratic Front of Bodoland militants in Balidaga Photo:PTI A village house of Bodo resident burnt by the tribal villagers as they retaliate after attacks by National Democratic Front of Bodoland militants in Balidaga Photo:PTI

Three of four siblings were charred to death and the other was seriously injured after fire broke out at their house in the Mizoram-Assam border town of Vairengte, the police said on Thursday.

Six-year-old Nuri and her younger brothers - John Lalpekhlua (four) and Jonathan (three) - were burned alive, while their elder sister Lalchhanhimi survived serious burn injuries on Wednesday, the police said.

The injured is currently undergoing treatment at a local hospital, police said.

An ablazed village house during attacks by National Democratic Front of Bodoland militants in Phulbari Photo:PTI An ablazed village house during attacks by National Democratic Front of Bodoland militants in Phulbari Photo:PTI

According to the police, their parents were away when the incident occurred.

The mother reportedly left a burning candle in the childrens' room which is suspected to be the cause of the fire, police said adding further investigation is on in the matter.

Union Home Minister Rajnath Singh with Assam Chief Minister Tarun Gogoi during a meeting regarding Law and Order situation of the State in Guwahati Photo:PT Union Home Minister Rajnath Singh with Assam Chief Minister Tarun Gogoi during a meeting regarding Law and Order situation of the State in Guwahati Photo:PT

Meanwhile, Union Home Minister Rajnath Singh assured Assam Chief Minister Tarun Gogoi of an NIA investigation into the killing of 65 villagers by NDFB(S) militants in three districts of the state.

Singh gave the assurance to Gogoi following a request by the latter, sources in the Chief Minister's Office (CMO) said.

The Union Home Minister, who arrived here this evening accompanied by his deputy Kiren Rijiju and Union Tribal Affairs Minister Jual Oram, and held a high level meeting with the Chief Minister, and senior civil, police, army and para-military officials.