Complex sentence: After partition of the sub-continent, he from China to Karachi in 1948 where he was British Council Visiting Professor at The National Central University at Nanking; becoming Director of Foreign Publicity, Government of Pakistan.
Split into simpler sentences: After partition of the sub-continent, he moved to Karachi in 1948, where he was British Council Visiting Professor at The National Central University at Nanking. He was appointed Director of Foreign Publicity, Government of Pakistan.