Good show Burns. But the only similarity between the Christian Trinity and the Hindu Trinity is the word trinity.
Although the wikipedia [,unreliable resource by the way,] uses the words 'great trinity' , the extensive polytheism of that faith could not possibly translate into Christianity. Hindus have [literally] hundreds of millions of Hindu gods. It is true that hindus will often view their [lower] deities as the 3 greater deities [Brahma, Vishnu and Shiva], often referred to as the Trimurti. They apparently proceeded the 'Great World Egg' that itself was created by the 'First Cause'.
They do not believe in a single divine Being who is eternal, uncreated, and in three persons which would be required to say that the Christian Trinity was borrowed from pagan beliefs.
respectfully,
DC