Where is Central Authority of Religion ?

Its the fate of every religion. Central authorities are only there when religion is new and its founder is round. As the main leader of the religion passes away.... Religion starts to deteriorate. New leaders of religions have their own interest so they start to mold its directions accordingly forming new religious sects.... This happened with all religions ...

You will not find any religion with only one group of people with same set of believes. Not a single one... But if you find one ... then follow that religion because God must be taking care after it :)

Exclusive Truth

Christain Minister Dr. Timothy J. Keller says:
Truth is exclusive, so that if one worldview is correct, others must be wrong. The key question is: which worldview is true?

You assume that you are the whole truth???

for Religious monks there are only 2 ways :

The Right way on which we are asking you to follow us and get God's love and gift (heaven).
and
The Wrong way on which others are trying to pull you on... That way you will go straight to Hell and will be burned and boiled for ever after

So choice is yours ..............
just keep in mind that everyone is on right path and everyone else is on the wrong way :)