The reason for faster growth of Delhi region is becuase of 1. Central govt which gives 10 times more preference to NCR over all other cities combined. Consider the fuel prices, infrastructure projects in NCR, and indifference to infra projects in Mumbai inspite of contributing 40% of countries taxes. 2. All MNC's for whom it makes sense to be near the capital city of a corrupt country than a financial center of a third world country. 3. Inefficient and uneducated local politicians of Maharashtra