Sure there is. There is 2,000 years of scholarship looking at the claims of Jesus from every conceivable angle and it is pretty straight forward conclusion. Whatever you think of his existence, or his divinity, or his validity of the ideas expressed in the Gospels and the rest of the New Testament. they are firmly rooted in 1st and 2nd century Judaism. No one seriously thinks there is evidence of Buddhist or Hindu influence. You can make conjectures all you want, it is a free country, but you might as well say the NT was influenced by Scandinavian or Mayan thought. Or Martian thought, for that matter.