Legal validity of a will registered after death of testator

Do not post academic queries. Furnish the specific facts.

Obtain probate of the will.

Both are valid.
Probate is required to enforce the Will.
Will need not be registered one to be valid .

Both are equally valid.

A will can be registered after the death of testator provided the sub-registrar is satisfied about the genuineness of the document presented for registration.

yes will can be registered after the death of testator . sub registrar has to be satisfied will is genuine

probate is judicial proof that will is genuine . if you want to property bequeathed under will you have to apply to court in this regard prove will was executed

Will may or may not be registered.  It should have been witnessed by 2 witnesses. Once testator is dead, there is no need to register a WILL. You can probate it by applying to a District court having competent jurisdiction.