The accused, identified as Zafar Masood, was arrested by one of the Special Cell teams that were raiding several places across western UP.
Masood's arrest follows the nabbing yesterday of Mohammed Asif (41), who is also a native of Sambhal, and a madrasa teacher, Abdul Rahman (37), said a senior police official.
Masood will now be subjected to interrogation to ascertain his role and connections within the AQIS module busted here, the official added.