Solution:All the four are included in federal policy, i.e., relations between the Union and States, Relations among States, Mechanism of resolving disputes and Mechanism for cooperation.All powers in India are divided into three categories: legislative, executive, and financial, shared between the central government and the states, creating an integrated system. Consequently, we can analyze the Centre-state relationship in three dimensions: legislative, administrative, and financial. States wield substantial decision-making authority on various matters, although the central government can impose restrictions. This division is evident in the State List, where some matters fall under exclusive state jurisdiction. Conversely, the Union List designates subjects for major decisions by the central government. There's also a Concurrent List, where the center and states have decision-making roles on specific matters.