It was indeed the body of their 9-year-old brother Chirag who was missing from January 1 and possibly died the same way as their two elder sister.
A friend of the two girls, who was accompanying them, was also electrocuted at the spot under Sadar police station area, the police said.
The victims are identified as Muskan (15) and Nidhi (17) and their friend Komal (19).
A local man today found the body of Chirag at the secluded area and raised an alarm which was heard by the three girls.
Police said they rushed to the spot without informing their parents and met the tragic end.
All the bodies were sent for postmortem examination.