Home Minister Rajnath Singh today said that Centre is working with states in a cooperative and supporting manner for building a stronger India.<br/><br/>Inaugurating an international conference on cooperative federalism in New Delhi today, Mr Singh said, the centrally sponsored schemes has been rationalized through NITI Aayog to give best benefit of it to the states and the citizens. He said, the centre has also increased the tax devolution from 32 per cent to 42 per cent as per the 14th Finance Commission recommendations. The Minister said, the states and the centre must work together in spirit of cooperative federalism.