Zakaat - Rules and modern issues

Zakaat of Madarsas, Islamic universities, etc.

Is Zakaat Compulsory on the amount collected in Madarsa, Islamic universities, orphanages and other relief organizations?  Considering that the amount is much higher than the prescribed criterion of Zakaat.  The amount of Zakaat and other charities in those institutions is the property of the deserving and needy folk like the poor students of the Madarsas, the orphans under the care of the orphanages, etc. and the organizations are only the caretakers of that amount.

Thus, there is no Zakaat on these institutions.