service tax and vat on trust or non commercial concerns

Whether Service Tax is applicable on the Hospital/Nursing home on the Service charges deducted/ collected from Doctors from their fees for cases done in a hospital which is under a charitable trust/ incorporated as a Section 25 company under the Companies Act.

Is VAT appliable on the sale of food to patients as well as doctors, attendants, family members and visitors of patients by the above hospital.

Is Luxury tax applicable if the above food is sold from a cafe which is Air Conditioned.