they won't take the issue of hinduism to a referandum, coz they know that the majority won't vote in favour of a secular state. if people are allowed to vote for religion, hinduism will easily get more than 60% of votes and will win by a clear majority. n our leaders don't want that to happen. only bahun and chhetris are not hindus, but the vast majority of the terai (which comprises at least 50% of the total population) and other hill etnic groups like newars are hindus. ok, there are some kirantis and some ethnic tribes with indigenous religions, but they are not the majority. and not all of them practice purely tribal religions. In fact a good percentage of them will vote for hinduism if a referendum is called for, contrary to the beliefs of the so called janajaati leaders and many of the sajhaites. and also another reality is that a good proportion of the so called indigeneous tribes have already converted to christianity. 5 yrs back, i had trekked in some remote hily districts of the eastern region. and i was surprised to find the existence of a good number of churches in such remote villages where the majority of the tribal villagers were converted christians and called themselves 'bishwasis'.