Complex sentence: The highest temperature ever recorded in Pakistan is which was recorded in Mohenjo-daro, Sindh on 26 May, 2010 it was not only the hottest temperature ever recorded in Pakistan but the hottest reliably measured temperature ever recorded in the continent of Asia.
Split into simpler sentences: The highest temperature ever recorded in Pakistan is which was recorded in Mohenjo-daro, Sindh on 26 May, 2010. It was not only the hottest temperature ever recorded in Pakistan but also the hottest reliably measured temperature ever recorded on the continent of Asia.