Security services to educational institution

Dear sir,

As per the Notification No.  25/2012- Services provided to or by an educational institution in respect of education exempted from service tax, by way of,-

 a. auxiliary educational services;

b. renting of immovable property

where  “auxiliary educational services” means any services relating to imparting any skill, knowledge, education or development of course content or any other knowledge – enhancement activity, whether for the students or the faculty, or any other services which educational institutions ordinarily carry out themselves but may obtain as outsourced services from any other person, including services relating to admission to such institution, conduct of examination, catering for the students under any mid-day meals scheme sponsored by Government, or transportation of students, faculty or staff of such institution; 

MY QUESTION IS WHETHER SECUIRITY SERVICE PROVIDED TO EDUCATIONAL INSTITUTION ARE TAXABLE OR EXEMPTED??