Complex sentence: At the behest of Prime Minister Liaquat Ali Khan, he joined the Pakistan Foreign Service in 1950 and the first file he received was marked'China' and when he opened it; it was blank.
Split into simpler sentences: At the behest of Prime Minister Liaquat Ali Khan, he joined the Pakistan Foreign Service in 1950. The first file he received was marked'China' and when he opened it; it was blank.