Nitish Kumarâ??s decision to resign as chief minister on Wednesday dealt a blow to the Congress and the opposition parties that have been trying to cobble up a â??Bihar-typeâ?* mahagathbandhan, or Grand Alliance, ahead of the 2019 general elections. Kumarâ??s exit from a coalition with RJDâ??s Lalu Prasad and the Congress underscores the challenges of such pacts, where once rival regional parties attempt ...