Twelve policemen, including an ASI, who were on duty, were suspended following the incident yesterday, Superintendent of Police (rural) Shailendra Kumar Sinha said.
Sinha said massive raids were being conducted to apprehend the escapees.
A CPI (Maoist) activist Phogra Munda, who was serving a life sentence in a murder case and against whom several cases were pending in various police stations in naxal-hit Ghatsila sub-division, and another undertrial Hopna Baske managed to escape from the court premises while they were being taken back to jail following their production in the court on Monday.