What if person admits in Court proceeding that he commuted c

Hypothetical statement for debate.

A hypothetical Query or an academic Query is, I think, as good as a real Query for improving our knowledge and, therefore, is not to be deprecated.

Yes.     It's an attempt to murder and an attempt to suicide.     Both are offences.       But admissions or confessions needn't necessarily be relied on by Courts.

Proofs, proofs and proofs are, in theory, required.

Ultimately it is  humanity that should prevail.  Do not flog a dead horse.   She is already in troubles, do not trouble her further.  First of all it is very difficult to establish, as mother can at the last moment also might have changed her decision.  The decision taken in a fit of anger is different from criminal mind.