PPSC Past Paper Care Taker BS-14 (L&HR) 2019 Solved MCQs, Islamic Studies MCQs, PPSC Solved Past Papers MCQsYear of Sorrow in Islam is?A. 9 Nabvi B. 10 Nabvi C. 11 Nabvi D. 13 Nabvi Art of writing secret and codes language is called?Who was the leader of infidels in the battle of Uhad ?