Economist Dr Suman K Bery on Sunday took charge as the Vice Chairperson of NITI Aayog, according to an official statement. "NITI Aayog's challenge is to...work with India's states, which is where economic development ultimately happens," the statement quoted Bery as saying. Bery has replaced Dr Rajiv Kumar, who had taken over as the Vice Chairperson in 2017.