Milon Sarkar the main suspect in the rape of an elderly nun in West Bengal, and another man Ahidul Islam Babu have been arrested by the CID.
The 74-year-old nun was attacked in March during a burglary at her convent.
The number of alleged attackers in the case stands at five. Four men who were earlier held have been released.
Both Sarkar and Islam Babu are reported to be Bangladeshi citizens who had fled to Bangladesh.