Before TG bifurcated from AP, HYD/VSKP/BZA/TPTY are counted the Major cities in AP. And after TG separated HYD gone and in place of HYD VSKP/BZA is there and no change in TPTY place. If u say CITY the cities u mentioned are cities with floating Population (Not settled population) GNT/NLR/RJY/KRNT are business centers and no doubt they attract so many people from near by areas for business purpose (Floating population with up and down) but i commented on settled Population. that i not clarified properly as i didnt expected this kind of question. and Cities are clarified by Central Govt by Grade in where VSKP/BZA/TPTY come first in Grade in AP. now Amaravati if God wishes and if it completed in up coming 20 years.