dyanaprajna2011
Dharmapala
I've read somewhere, in a Buddhist book, and I'm not sure how accurate this is, but after the advent of the Buddha, that he had a great impact on Hinduism, somewhere down the road, especially the Advaita Vedanta school, and some forms of Hinduism started taking on more Buddhist aspects. But, like I said, I might be completely wrong on this. The more simple answer would be that, like all religions, things change and evolve, so differing sects took on differing interpretations of their scriptures/stories.