With polls due next month, the Bharatiya Janata Party (BJP) seems to be headed for stormy weather. Ahead of the high-stakes polls, while the farmers from the west-Uttar Pradesh were yet to warm up to the party, the sudden exodus of non-Yadav Other Backward Class (OBC) leaders has triggered a stampede in the saffron party, indicating Mandal revival, a politics which revolves around caste identity and reservation benefits.