"Ajay and Amit were arrested in connection with the murder of Santosh," ACP Aman Yadav told reporters here.
Santosh, driver of a school bus, was beaten to death last night outside his residence.
The ACP said Santosh's friends Ajay, Amit, Krishna, and Sunil had a "small argument" with him over some issue few days back over which the four killed him, he said.
A local court has sent both Ajay and Amit to three-day remand. The two other accused would be arrested soon, he said.