Sir,
According to Sl. No. 9 (b) of Notification No. 25/2012-ST dated 20.6.2012 (with effect from 1.7.2012) only Services provided to an educational institution, by way of,-
(i) transportation of students, faculty and staff;
(ii) catering, including any mid-day meals scheme sponsored by the Government;
(iii) security or cleaning or house-keeping services performed in such educational institution;
(iv) services relating to admission to, or conduct of examination by, such institution.
are exempted. Renting of immovable property (playing ground) to Educational Institution is not exempted under the above Notification.