Sajid, Shakir, Iqbal and Haneef were arrested in connection with a loot case in Wazirganj area in July last and sent to jail, police said.
The accused were taken to court to appear in the case yesterday where Shakir attempted to escape.
While the policemen escorting them tried to foil the attempt, three other accused Sajid, Iqbal and Haneef managed to flee from the spot, they said.
While Iqbal and Haneef were nabbed by police from Shivpuram, Sajid was still at large, they said.
Senior Superintendent of Police Manjil Saini has directed suspension and lodging of a case against policeman Pratap Singh and two homeguards Munendrapal and Barrister Singh, who were on escort duty.
She has also directed suspension of head constable Surendra Singh in this connection.