medical facility u/s 17 (2) Salary

Dear Friends,

Please enlighten me regarding Medical Facility provided to an employee at a Private Hospital.

As per sec 17 (2) of IT Act 1961, if any treatment is provided  to an employee for specific diseases like cancer, Tb etc..at an approved hospital, then such perquisite is fully exempted from IT .

But such Hospital is required to avail approval from Chief Commissioner of Income Tax to grant such exemption certificate.

kindly let me know the procedure and prescribed format of application to Chief Commissioner of Income Tax.

and format of certificate issued by Hospital to Patient u/s 17 (2).

thanks

vaibhav