High tension current from a nearby 11 Kv pole leaked into the nearby water pipes connected to a house, district Deputy Commissioner Abhishek Bhagotia told.
He said heavy rain that lashed the area for the past three days have led to the leakage in power transmission which resulted in the electrocution of the victims.
According to the official, several other students who were staying on rent at the house in Lad Sutnga village managed to escape from the house.
Additional District Magistrate D Veronica Lyngdoh has been asked to probe the incident.
The Meghalaya Electric Corporation Ltd (MeECL) has shut off all power lines connected to the district, a power official said.
The district magistrate has convened a meeting with the MeECL officials this evening to work out appropriate compensation to the victims, Bhagotia said.