The prison department and the local police launched a massive manhunt in the city and outskirts to trace the absconding inmate.
Rajesh, who raped and murdered a Class 10 student in 2012, and murder convict Srinivasan fled the open jail in Thiruvananthapuram on Wednesday.
A handcuffed Manik jumped off the train as it slowed down while crossing the Bharatapuzha.
Probe revealed that they constantly outwitted people to avoid falling into the police net while on the run in the two southern districts of Kerala.
Varkala native Sandhya and Pangode native Shilpa were caught from Adukkumthara in Palode. The police suspect that they were trying to flee to Tamil Nadu.
Three prisoners reportedly mixed sleeping pills in the tea for officers before attempting a jailbreak though in vain.
The prisoners – Rafeeq, Ashraf Shamseer and Arun -- allegedly mixed tea with sleeping pills and served the brew to jail officials on duty on April 24.