Ironically the greenest cosmo capital city in south Asia is Islamabad...
https://defence.pk/pdf/threads/pictures-from-cities-islamabad.5593/page-109
-Pakistan is about 5.7 times the size of Bangladesh...and even if 45-50% of Pakistan is green, like whole of Punjab is Green(except for a very small area), KPK has large green area 22% forest area in the province, Sindh is about 65% green...so that makes Pakistan green area easily 3 times that of Bangladesh.
Only Balochistan looks barren from the Google earth but that province produces the largest amount of fruits in Pakistan of some varieties like apple, peach dry fruits, dates. FATA is about 28% green with big forests not explored.
So Pakistan green area overall is much bigger than total of Bangladesh and Srilanka.
Google maps doesn't gives the correct picture...need a closer look.
Check this...abundance of water reservoirs...
https://www.washingtonpost.com/worl...6b4cd4-4882-11e6-8dac-0c6e4accc5b1_story.html
Pakistan has the largest irrigation system in the world..
LARGEST IRRIGATION SYSTEM OF THE
WORLD The
world's largest irrigation network
is present in
Pakistan. It serves 14.4 million hectares of cultivated land. The
irrigation system is fed by water from the Indus River.
https://inspirich.com/indus-basin-largest-irrigation-system/