Khewra mines are known for their huge deposits of May 21, 2021 / By Preparation Point / Inspector & Sub Inspector jobs Past Papers MCQs Share on WhatsApp Share on Facebook Share on Twitter Share on LinkedIna>coal b> rock salt c>petrol d>potassium Province: Punjab Company: Pakistan Mineral Development Corporation Active: 140 years Opened: 1872 Share this:TwitterFacebookMoreTelegramWhatsAppLike this:Like Loading... Related Share on WhatsApp Share on Facebook Share on Twitter Share on LinkedIn