Each state is different. That we know, even within states there are linguistic and caste differences and even within what we assume to be monolithic caste-blocs, there are differences. Somehow Narendra Modi has managed to bridge those differences through his appeal and through
Amit Shah, the Bharatiya Janata Party has built a truly multi-caste and multi-cultural organisation. This should have the southern regional parties worried ahead of the 2019 elections, because Karnataka was a waterproof bulkhead protecting the south from the saffron surge. It has been breached and no matter what happens this winter where the BJP is expected to lose at least one large northern state, they can potentially now make the south a fortress.