State-centre structural duality is one of the main reasons behind the systematic backwardness of the states in India. One of the major mechanisms to address the problem of dual economy is the bottom-up decentralised development planning. But decentralised participatory planning suffers from serious problems related to implementation. Apart from many reasons behind the implementation problem it is the incentive incompatibility which creates serious impediments in the path towards the said implementation. Unless this problem of incentive incompatibility is minimized the idea of decentralised participatory planning will not be able to implement itself successfully. This type of inclusive decentralised planning can help India to become a super power through the path of holistic growth. To wipe out the structural duality it is needed to evolve a method where the problem of incentive incompatibility is minimized along with accommodating the preferences of beneficiaries with in the top down method. Actually, these decentralised planning has failed to deliver desired result due to the existence of centralised components inside the method and incentive incompatibility. This failure is compared here with the non-existence of abstract relationship between the centre and state. Abstract relationship as described here fails to deliver desired outcome when the methods declared at the centre class fail to find proper agent for execution at the derived state class. This mismatch between the method and the agent is described here as the failure of the development program or failure of runtime polymorphism. Thus, this work wants to explain this structural phenomenon through Object Oriented Paradigm. It is concluded here that this backwardness arises due to the non-existence of abstract relationship between the centre and state areas. This impediment can be corrected through development of interface using the concept of successive approximation.