Officials said the incident occured late this evening at the Jharoda Kalan camp of the paramilitary force in West Delhi when a CRPF constable, along with two others, hit an Assistant Commandant (AC) rank officer during the brawl.
"According to preliminary reports, the brawl between the officer and the constable erupted because of some personal problems between the two.
An official inquiry will be conducted," official sources said.
Police officials said while the incident has been reported to the local police station, no FIR has been lodged till now.
The injured officer has been identified as Satish Sihag and admitted to a local hospital. He is reported to be out of danger.
Senior officials of the Northern Range of the force have reached the spot to take stock of the situation.