U.S. Geological Survey says the quake was 57 kilometres (35 miles) deep and struck 29 kilometres (18 miles) west of Imphal, the capital of Manipur on the border with Myanmar.
According to NDTV, the quake struck while many residents were asleep, and roofs and staircases of some buildings collapsed in the city of about 2,70,000 people.
Kanarjit Kangujam, a disaster response worker has told Reuters news agency that it was the biggest earthquake felt in Imphal.
The quake also collapsed at least one building and produced cracks into other structures.
NDTV reports that, disaster rescue workers battled to find workers believed to have been buried beneath the rubble of a building that had been under construction. They were unsure how many might be trapped.
Residents of Imphal said people fled their homes and power and telecoms links were down in the remote region.
Some lashed out at what they called the authorities’ slow response, saying that although the Army had begun to clear some debris, it appeared to be short on heavy equipment. “We haven’t seen any help from the government side until now,” said Kangujam, the disaster response volunteer in Manipur. “The government has not given us any information.”
However, Indian Prime Minister Narendra Modi has pointed through a number of posts on his official twitter account that he is contact with local authorities for better response to the situation.