Metropolitan Magistrate Ajay Garg suffered head injuries and two additional sessions judges Inderjit Singh and M K Nagpal escaped unhurt in the incident which took place in Dakshinpuri last evening. Their driver Chaman Lal was also injured.
Police arrested Anil Raj, his brother Sunil Raj, Rohit and Prashant in connection with the incident.
"While two were placed under arrested yesterday, the remaining two, Sunil Raj and Prashant, were arrested today. We have charged them with attempt to murder on the basis of the statement of the driver," Dharmendra Kumar, Special Commissioner (Law and Order), told reporters here.
He said Lal claimed "the matter was about to be settled when Anil Raj noticed sticker of judiciary in the car. He then told his friends that these people have send them to jails often and then they attacked the judges. They used bricks to attack them."
Emphasising that they will invoke harsher charges in road rage cases, Kumar also appealed to people to take down numbers and hand it over to police to help them in further probe.
He said Anil Raj, who is a salesman in a south Delhi mall, was previously involved in two cases, while his brother is unemployed. Rohit is into purchase and sale of scooters, while Prashant is a hairdresser.