The boy, Radheshyam, fell into the borewell last evening while he was trying to cross over the open shaft which was covered with a sack, police said today.
Army was called in by the district administration after the civil arrangements to rescue the boy did not deliver results.
"On request of the district administration, a team from Army comprising engineers and medical representative was pressed into service to pull the boy out," Defence spokesperson Col S D Goswami said.
Police said that two earth moving machines and tractors were pressed into service for digging land adjacent to the borewell soon after the incident occurred.