Nomination is important and you should ensure that you have nominated a person who will be entrusted with your funds in the case of your death. If you have not made any nomination, in the event of your death, it will be cumbersome for your legal heirs to take control of your investments. By having a nominee, the amount in your mutual investment gets transferred directly to the nominee in the event of your death and the process is fairly simple with nominee to prove his identity. You can change the nominee as many times as you wish to by filling up the nomination form and changing it from your mother to wife.