The biggest achievement of Modi & Shah was to weaken the state units of Cong. Between 2004-2014, Cong was in power in Mah,Har,Pun,Kar, united AP,Raj,Ukd,HP, Ker,Assam, ARP, Meg, Man, Miz, Goa, J&K, Delhi & Pondy at different times. What BJP needs is a strong South India strategy.