Manipur bore the brunt of the temblor which struck at 4.35 AM, jolting the people out of their sleep. Many buildings collapsed or developed cracks in Tamenglong, where the earthquake was epicetred at a depth of 17 km. All six deaths were in the state while 70 people were injured.
Army and Air Force have joined the relief operations and two teams of National Disaster Response Force have been rushed to Imphal while one was being sent to Assam where at least 20 people were injured.
"Damage to a few buildings, residential units and Government offices have been reported, including damage to a six storey building in Imphal," according to National Disaster Management Authority (NDMA).
Power supply to Imphal city has been disrupted and some power installations have suffered damage, an official statement said after Cabinet Secretary P K Sinha held a meeting of the National Crisis Management Committee (NCMC) this morning.
Several building in Imphal, including the market complex, and roads developed cracks while walls of some school buildings have collapsed, officils said.
Prime Minister Narendra Modi said he had spoken to Home Minister Rajnath Singh, who is in Assam, and asked him to oversee the situation arising due to the earthquake.
The PM also spoke to Manipur Chief Minister Okram Ibobi Singh and other chief ministers in the region to take stock of the situation.
Chief Minister Ibobi Singh said that they were trying to assess the extent of the damage. "The Prime Minister and Home Minister have assured all possible help," he said.
Army units in Manipur were providing all necessary medical assistance to the injured, defence officials said.