A will is a written document a person makes to describe how their assets and wealth are to be distributed among their descendants. The making and execution of wills is governed by the Indian Succession Act of 1925, which applies to all religions except Islam.
Drafting a last will and testament ensures that your property is safely and securely distributed amongst your beneficiaries, as per your wishes. This would avoid intestacy and minimize the chances of a dispute over right of inheritance and avoid long-drawn court processes. You need to name an executor (who will carry out all the proceedings of the will) and a legal guardian for your children if they are minors.
To know more, do read the Nyaaya explainer on Wills.