The gang was helping some students of class X and XII in cheating at a school near Jind bypass in Rohtak when they were arrested, police said.
The director of the school was missing and raids were being conducted to arrest him, police said.
During investigation it was revealed that accused had taken Rs 2,000 to Rs 3,000 from every candidate.
Police also recovered Rs 23,000, a photostat machine and a computer from their possession.