Union Home Minister Rajnath Singh on Monday said investigations were on to identify militants and their group who were responsible for killing of innocent people in Assam's Kokrajhar district on August 5.
Making a suo motto statement in the Lok Sabha, Singh said 14 people were killed and 19 others injured in the incident.
The minister said the militants came in army fatigue and attacked a market place. He expressed condolences to the bereaved families.
Earlier, as soon as the House met for the day, Speaker Sumitra Mahajan led the House in condemning the incident.
Assam Chief Minister Sarbanand Sonowal on Sunday warned that his government would take stern action against perpetrators of the August 5 killing. "We will take stern action against those extremists who committed this particular killing and will not spare anyone. We will fight them out together, because our government's policy is clear, there is 'zero tolerance' against terrorism," said Sonowal after chairing a high-level meeting.