Dear Aastha,
Generally there is a practice to obtain an undertaking / declaration in Company Employment Application Form and or a clause in appointment letter that: Declaration / Undertaking:(Sample)
I, the above named applicant do hereby solemnly declare that the above information in the form for employment, is true to the best of my knowledge and belief. In case, any of the above information will at any time be found incorrect, I shall be liable for immediate termination and this would be deemed as part of the contract of employment.
I am fully aware that the post is of contractual nature and will come to an end immediately after the contract period, renewal of contract period or completion of contract, whichever is earlier.
I am not suffering from any disease which may render me unfit for the above post or affect the efficiency of my work. I do have the capacity to work in the post as applied for.
If you have similar declaration in your company employment application form and or appointment letter, and the information / documentation you recd. as a support / proof and found geniune, you may terminate after disclosing the fact to concerned employee in presence of witness.
Regards,
Suresh