The Bhagavad Gita is a Hindu scripture; I am not aware of any newsworthy Hindu fundamentalists. It's the Muslim hard cases who concern me the most.
Now, if you had written " I have it on reasonably good authority that there are some fundamentalists who think answers can be found in the Koran," I would have nodded in agreement.
If you have anything of interest to tell us about Hindu fundamentalists, please do so!