The NITI Aayog has formulated an economic plan for the cities of Mumbai, Surat, Varanasi, and Vizag, aiming to transform them and help India become a developed economy by 2047. The Aayog plans to prepare economic planning for 20-25 more cities and is also working on a vision document for India to become a $30 trillion economy by 2047. The document will be released by Prime Minister Narendra Modi.