There is nothing called a ring-leader. These are stories fed to the media and gullible public to ensure they feel the job is done and they are safe. Political reasons. For a second take off your dimwit goggles and think reasonably.
If you are tasked with heading spy operations in any country, would you structure it in such a way that compromising one compromises all? Even terrorist organizations know better. They are organized as cells where anyone who may be apprehended knows only those under him and the single contact he reports to.
RAW/ISI are no different.
Again, two tabloid news sources which picked up the original piece from Mumbai Mirror. One of them is infact the Ahmedabad edition of the Mirror.
Hint: don't look for news about intelligence activities on tabloid sites. Why were you browsing it in any case? Bollywood gossip right? Don't lie!!!