Dear Divyesh,
What is the date of the certificate submitted by the employee, and what is the date of the certificate of the medical conducted by the company? What is the time duration in days between the two? What is the nature of the medical unfitness that was detected during the medical check-up conducted by the company? What is the designation of the employee, and what is the nature of the work he/she is required to do?
Human health is unpredictable. Anything may happen to anybody. Ascertain the facts and do not jump to the conclusion that he had suppressed the material facts while joining your organization. Nevertheless, you can do the independent verification of the genuineness of the medical certificate submitted by the employee. If it is a fake one, then it is a falsification of the documents, and his services are liable for termination.
However, if the certificate submitted by him is a genuine one, then explore the possibility of giving him an alternate work. Deal with the case compassionately.
Thanks,
Dinesh Divekar