I don’t think you can call the BJP the conservative party. That term makes no sense in the Indian sense. It can be called a hindu-religion themed, businessman’s party, but it’s not “liberal”, nor particularly conservative (even not hindu conservative)
BJP is the growth party vs the Congress redistribution party.
It is against normalizing homosexuality.
It wants an alliance with the USA and wants no special privilege for Islam or Muslims within the Indian state.
More so than the British Conservative Party,
I think that qualifies BJP as “roughly conservative.”