India has a plethora of laws which r not enforced. So one more. Every law has a loophole and can be circumvented.
The Bhagvad Gita preaches the message of equality of all humakind (and not merely equality /brotherhood of people following a particular faith as is the case with some other faiths)
See verse 9:29 of Gita which says :"i am alike to all beings.None is hated or dear to me"
It is simple. No devotee of the Lord can be barred from entering his temple. If temple authorities cannot respect Gita, which man-made law will they respect? They will circumvemnt it one way or the other.
