Whenever the opinion of any living person is relevant, the grounds on which such opinion is based are also relevant.
Illustration
An expert may give an account of experiments performed by him for the purpose of
forming his opinion.
Section 51 Grounds of opinion, when relevant
Section 52 In civil cases character to prove conduct imputed, irrelevant
Section 53 In criminal cases previous good character relevant
Section 53A Evidence of character or previous sexual experience not relevant in certain cases
Section 54 Previous bad character not relevant, except in reply
Section 55 Character as affecting damages
Section 56 Fact judicially noticeable need not be proved
Section 57 Facts of which Court must take judicial notice
Section 58 Facts admitted need not be proved