One of the girls' body was recovered this morning, while divers and search team were still searching the other girl, the police said.
The deceased was identified as Krishna, 5, while Radha, 5, was still to be found, they said.
The incident occurred yesterday when the girls were in farms with their mother and it started raining heavily along with hailstorm as they rushed back home, they said.
The girls, who were walking ahead of their mother, disappeared after they reached near an open drain on the way, police said.