India’s quest for Viksit Bharat, or developed nation status by 2047, may be derailed not by a lack of ambition or growth but by festering disquiet among its most advanced states.In an unvarnished interview with BasisPoint Insight, former Reserve Bank of India Governor Duvvuri Subbarao warns that a widening political and fiscal gulf between the Centre and southern states threatens to erode the foundations of cooperative federalism, just when it is most needed.