I recently heard about changing of the will too. As in you can go and modify or cancel the will if and when you feel it is necessary. You can get a will prepared at the sub-registrar's office, in your case, Mysore. You will need all the documents related to the property's registration along with the personal details of the benficiary. The process of modifying the will is called codicil
I think there are witnesses involved in the actual process. A licensed scribe (professional writer) will be hired to draft out the will, and the testator signs in the presence of attesting witnesses excluding the scribe and the testator. Wills should never be ambiguous as it is executed posthumously.
A will is, strictly speaking, a testament document. The owner of a property will document the state in which the property will be left after the owner's death., as in, who will get the next ownership. Once the testator(owner) is no more, the property devolves on next owner.
Yes. The above mentioned definition is pretty clear. But there are some loopholes too. That is why they say the will must be drawn voluntarily, and is invalid if coerced into creation. And there is a age limit of 18 years minimum. Parents and guardians cannot execute minor's wills.