LAHORE   -  Planning and Development Board (P&DB) Chairman Abdullah Khan Sumbal on Saturday assumed the charge of Chief Secretary Punjab. Abdullah Khan Sumbal belongs to the 23rd Common of PAS and has a vast experience in the fields of finance and administration. Sumbal held important positions in various departments during his career as a civil servant. He served as Additional Chief Secretary, Secretary Finance, Secy Higher Education, Secretary Information, Commissioner Lahore and Sahiwal divisions.