Nov 09, 2025 07:43 pm CST

An exclusive investigation reveals details about Pakistan's highly classified ISI unit known as 'S1' (Subversion 1), which has been orchestrating terror attacks against India for over 25 years. From the 1993 Mumbai blasts to the recent Pahalgam attack, this secretive unit trains terrorists, provides expertise in explosives, and maintains connections with major terror groups while operating under deep cover. Indian security agencies have only recently uncovered the full scope of S1's activities.