The Open Market Sale Scheme has become a matter of contention between the Centre and state governments due to various reasons. The ongoing tussle can be explained as follows: 1. Control over resources: State governments argue that the scheme allows the Centre to intervene in the management of agricultural produce, which they believe is their jurisdiction. 2. Revenue loss: Some state governments claim that the scheme leads to a decrease in their revenue since the Centre sells commodities at lower prices, competing with state-run markets. 3. Disruption of local markets: State governments assert that the scheme disrupts the functioning of local markets and adversely affects traders and farmers who depend on them. 4. Lack of consultation: Some state governments criticize the Centre for implementing the scheme without prior consultation or obtaining their consent, undermining the principles of cooperative federalism. 5. Legal issues: Disputes have arisen regarding whether the Centre has the constitutional authority to implement such schemes and its applicability in various states. Overall, the tussle between the Centre and state governments over the Open Market Sale Scheme revolves around issues of jurisdiction, revenue loss, disruption of local markets, lack of consultation, and legal aspects.