Execution of the Will is not mere act of signing. The executant (one who signs) owns up recitals in the Will executed by him/her. He/she must understand contents and terms of the documents before subscribing Signature.

Testator (the person executing the Will) should sign the Will or shall have his/her mark affixed to it if the testator is illiterate. Even if the testator is capable of writing but on account of weaknesses or any other incapacity he/she is unable to write his/her signature, he she may execute the will by a mark and in doing so his/her hand may be guided by another person.

If the testator is illiterate or puts thumb impression it is always advisable to write in the Will that the contents has been explained to the testator in the language he/she understands.