The injured persons were attending cremation of a 66-year-old man but it was stalled for about three hours with bees wreaking havoc.
The injured persons are undergoing treatment in a hospital here and are stated to be out of danger.
The last rites of Gouranga Charan Sahu, a resident of Thakurhaat, were being performed at the cremation ground when the incident took place.
While his son Laxmidhar lit his father's funeral pyre, sparks of fire spread to a nearby tree which was home to a swarm of honeybees.
After order was restored with fire brigade personnel bringing the beehive down by spraying water, cremation could be resumed.