Four persons, including a contractor were kidnapped by militants on Sunday when they went to Sasatgre-Chandigre village to inspect a project for erecting an electric line for the Rajiv Gandhi Grameen Vidyutikaran Yojana, a senior police officer told PTI.
The next day the four were taken by the militants toward the Nokrek Biospere hills above Sasatgre-Chandigre village where they demanded money for releasing them.
When they failed to pay, the militants fired on them killing three of them, while one survived as a bullet just grazed his head, the sources said.
Among the victims was a contractor Rutherford R Marak, a resident of district headquarters in Tura.
Marak had unsuccessfully contested the Autonomous District Council elections five years ago.