“A delegated authority cannot again be delegated.”
A person to whom some power is delegated cannot sub-delegate that power to someone else.
A has been authorized to execute a will upon the death of B. Now A cannot delegate this power to any other person. Doing so would render further delegation of an already delegated authority. Here A cannot sub-delegate his authority as the rule of Delegatus Non Potest Delegare applies.
1. A.K. Roy & Another v. State of Punjab & Others (1986)
2. Marathwada University v. Seshrao Balwant Rao Chavan (1989)