Answer:
After 1990, India saw the rise of regional political parties. This was also the beginning of the era of coalition government at the Centre. Since no single party got a clear majority in the Lok Sabha, the major national parties had to enter into an alliance with many parties including several regional parties to form a government at the Centre. This led to a new culture of power sharing and respect for the autonomy of State Governments. Thus, federal power-sharing is more effective today than it was in the early years after the Constitution came into force.