Kasur also romanized as Qasūr; from pluralized Arabic word Qasr meaning “palaces” is a city to the south of Lahore, in the Pakistani province of Punjab. The city serves as the headquarters of Kasur District. Kasur is the 24th largest city of Pakistan by population. It is also known for being the burial place of the 17th-century Sufi-poet Bulleh Shah. It is farther west of the border with neighboring India, and bordered to Lahore, Sheikhupura, and the Okara District of Punjab Province. The city is an aggregation of 26 fortified hamlets overlooking the alluvial valleys of the Beas and Sutlej rivers. Kasur is bordered to the north by Lahore, by India to the south and east, it also has borders with Okara and Nankana Sahab district. The city is adjacent to the border of Ganda Singh Wala, a border with its own flag-lowering ceremony. Kasur is situated in a subtropical thorn woodland biome (Northwestern thorn scrub forests) and in the Deserts and xeric shrublands ecoregion according to the World Wide Fund for Nature’s map of ecological regions in the world. Kasur has a hot semi-arid climate . Kasur has extremes of climate; the summer season begins from April and continues till September. June is the hottest month. The mean maximum and minimum temperature for this month are about 45 °C (113.0 °F) and 27 °C (80.6 °F) respectively. The winter seasons lasts from November to February. January is the coldest month.