Jitender (22), Shiv Kumar (21), both jail escapees, and Ravinder Singh (25) were apprehended in the past two days, Additional Commissioner of Police (Crime) Ashok Chand said.
Three sophisticated pistols, eight live cartridges and one motorcycle have been recovered from the trio's possession.
While Singh and Jitender were arrested from Minto Road on Saturday, Kumar was apprehended yesterday.
Jitender and Kumar along with six others had escaped from the Sonepat jail. They had allegedly conspired with some of the jail staff and their associates outside the prison to come out from there.
Five jail staff and 10 others, who had allegedly conspired and provided logistic support, were arrested earlier. Jitender and Kumar were eluding police till their arrest in the last two days.