States are a part of the nation's federal structure, and recent political unrest has made strong regional parties necessary because an absolute majority at the national level frequently devolves into a parliamentary dictatorship.

Regional parties put a strong impact on the nature and course of centre-state relations and demand for a grant of greater autonomy and make the central leadership more responsive to the needs of the regional actors.

The ‘State leaderships’ always try to become more and more vocal in their dealings with the central leadership. Regional parties' political process is more extensive at the grassroots and they bring into focus the local or regional issues which immediately attract the attention of the masses and their impact on the structure and process of politics has been multi-directional and far-reaching.

No national party is able to secure a majority in Lok Sabha many times. As a result, the National Parties are compelled to form alliances with state parties, as we have seen 23 regional local parties, as partners of NDA, shared power at the Centre during 1999-2004. And from 2004 to 2014 The UPA government was in power with an alliance of regional parties. This has contributed to the strengthening of federalism and democracy in our country and makes the Parliament of India politically and electorally more diverse.

Participation of regional parties in national politics has been a source of healthy influence on Indian politics and federalism. The stronger the regional parties, the more democratic norms are upheld.