Tier-1 cities are top 7-8 Indian cities based on population. Tier-2 and Tier-3 are smaller cities https://en.wikipedia.org/wiki/Classification_of_Indian_cities

Tier-1 cities are top 7-8 Indian cities based on population. Tier-2 and Tier-3 are smaller cities https://en.wikipedia.org/wiki/Classification_of_Indian_cities https://en.wikipedia.org/wiki/Classification_of_Indian_citie...