Hinduism is not really a "religion", as the western term implies. From Wikipedia https://en.wikipedia.org/wiki/Hinduism#Definitions

Hinduism includes a diversity of ideas on spirituality and traditions, but has no ecclesiastical order, no unquestionable religious authorities, no governing body, no prophet(s) nor any binding holy book; Hindus can choose to be polytheistic, pantheistic, panentheistic, pandeistic, henotheistic, monotheistic, monistic, agnostic, atheistic or humanist. According to Doniger, "ideas about all the major issues of faith and lifestyle – vegetarianism, nonviolence, belief in rebirth, even caste – are subjects of debate, not dogma.

> Sadly recent radicalisation have dented its malleability.

Hindutva shouldn't be confused with Hinduism: https://www.asianstudies.org/publications/eaa/archives/on-th...