Who is capable of making a will?

Every person (a) who is of sound mind and (b) who is not a minor can dispose of his property by will. 

A married woman can dispose off any property which she could alienate by her own act during her life-time through a will. Persons who are deaf, dumb or blind can make a will, if they are able to know what they are doing. A person who is ordinary insane may make a will during the interval when he is of sound mind. However, no person can make a will while he/she is in such a state of mind when he/she does not know what he/she is doing and is incapable of understanding the terms and conditions involved in a will.