Sanskrit is Devbhasya, VijayaRaghavji- true it came to India 2000 years ago. So how Ram spoke Sankrit.
look at the proof below. It was european language which came to india around 2500 years ago along with Aryan migration. Latvia still have similarity with sankrit. Even Romani, gypsy language has resembelance to Sankrit. Aryans were gypsies. Read the link. http://www.lexiline.com/lexiline/lexi51.htm
Now you can claim hinduism which is 17 milllion years old where as its name was coined by britishers around 500 years ago.