Breaking political barriers to win elections may not be the same as breaking social barriers in Uttar Pradesh, which is still divided and polarized by caste prejudice. For someone who has just opened his innings in politics, Nakul Dubey is remarkably assured. Until last year, he was just a legal assistant to SC Mishra, Mayawati's powerful Brahmin advisor and the man who crafted the unlikely but effective BSP-Brahmin alliance.