Guwahati/Sonitpur: Talking tough, Home Minister Rajnath Singh on Thursday declared that strong action will be taken against NDFB(S), which massacred over 70 people in Assam on Tuesday, asserting that the Centre has "zero tolerance" policy for such "crafted terror".

"We will take strong measures to deal with the outfit and will control it effectively," he told reporters at Biswanath Chariali in Sonitpur district during his visit to review the situation in the state, which has been rocked by the bloodbath by Bodo militants and retaliatory violence by Adivasis.

Asked about operations against the outfit, the Union minister said, "Operations will definitely be launched against the outfit but cannot say when".

"The killings by NDFB(S) is not an ordinary act of violence by a militant outfit, but an act of crafted terror and we will deal with it accordingly," Singh said.

"The Centre has adopted a zero-tolerance policy against all acts of terror and the similar policy will be adopted in this case too," he said.

Singh said he held talks with the state government on issues related to border and area development of the affected areas.

The Union Minister for Tribal Affairs Jual Oram, who accompanied him, will stay in the area, visit the affected villages, talk to the people and submit a report to the Centre

soon, he said.

Singh accompanied by his deputy Kiren Rijiju arrived here last evening and held a meeting with Assam Chief Minister Tarun Gogoi and senior officials.

He assured that an investigation by NIA would be conducted into the killings by NDFB(S) militants and that the Centre would provide additional companies of security forces.

Militants killed a total of 71 people, 43 in Sonitpur, 25 in Kokrajhar and three in Chirang district in the Tuesday massacre.

In retaliatory attacks by adivasis, four Bodos were killed while three adivasis were killed allegedly in police firing on violent protesters.