Rationalist interpretation of scripture was punished by excommunication.

Evidence

In the first place, how are the texts of the Vedas and smritis to be interpreted whenever any doubt arises regarding their meaning? On this important question the view of Manu is quite definite. He says: … According to this rule, rationalism as a canon of interpreting the Vedas and smritis is absolutely condemned. It is regarded to be as wicked as atheism, and the punishment provided for it is excommunication. Thus, where a matter is covered by the Veda or the smriti, a Hindu cannot resort to rational thinking. — Ambedkar, B R, Annihilation of Caste_ The Annotated…, 977