As someone who was born in Pakistan I can tell you that due to Pakistan being an Islamic Republic the sale and consumption of alcohol by Muslims is strictly prohibited and punishments for them being caught drinking or being drunk can be quite severe. However hotels in areas frequented by tourists may and do sell alcohol to non-Muslim foreigners with the strict rule of only drinking within the hotel and not outside as even foreigners Muslim or not can get in trouble for drinking alcohol.

However due to the corruption in Pakistan (and usually if you’re a foreigner) and if you have enough for a bribe you can usually get away with it