Event: Independence day
Independence Day is celebrated on 14th August. In order to maintaining security situation for Flag hoisting Ceremony on Independence Day, government suspended mobile services in more than 40 cities.
Cities Name:
Lahore , Karachi , Islamabad , Rawalpindi , Faisalabad , Multan , Gujranwala , Quetta , Peshawar , Sialkot , Mianwali , Sargodha , Sukkur , Bahawalpur , Jhang , Gujrat , Muzzafarabad
Source:
https://www.geo.tv/latest/111345-Cellular-service-restored-in-major-cities-across-Pakistan
http://www.dawn.com/news/1277451https://www.geo.tv/latest/111345-Cellular-service-restored-in-major-cities-across-Pakistan
https://propakistani.pk/2016/08/13/mobile-service-in-25-cities-to-remain-suspended-on-august-14th/
2016 Timeline