Answer:
(Fatwa: 945/945=M/1430)
If the children are from outside and the madrasa manages their lodge and food, one can give zakah to the madrasa.
(2) Yes, you will have to pay Zakah of the plot.
Allah (Subhana Wa Ta’ala) knows Best
Darul Ifta,
Darul Uloom Deoband
