Inputcredit

Dear Experts,

                       Am working for capital goods manufacturing company,we have factory and office as well, am availing input credit on service tax paid on inward courier, security, repairs pertaining to factory can i avail input credit pertaining to service tax paid on security, cateering, courier , facility managment service pertaining to office.

dear friends please provide case law.

very much needfull as amount is exceeding 50lakh a month