kamban was not a brahmin, but u can be sure he had a deep knowledge in Samskrith through his works. Learn the works of kamban and valluvan and Tamizh history, which iam sure was not thought to you to a good extent in your schools as they wanted to glorify the english. You will have Proof for the existance of Rama.
Ask ur Grand father if he was educated, or anyone who is above 70 and educated, The English Thought their history in our schools. we dint change our History books much after that. we just added pages about indipendence. So naturally, our history books dont teach us our true history. days are changing. go to the Internet, you will learn more about your true History.