The first ever Jalsa Salana in Rabwah took place from 15 to 17 April 1949, attended by 17,000 people. The Punjab Assembly passed a resolution on 17 November 1998 changing the name of Rabwah to ‘Nawan Qadian’, but on 14 February 1999, a new directive was issued, renaming Nawan Qadian to Chenab Nagar. The other names considered were Chak Dhaggian, Mustafa Abad, and Siddiq Abad. The city has a population of 70,000, of which 97 percent belong to the Ahmadiyya Community. The rest 3 percent includes Christians and Sunni Muslims. As the City has seen many migrations of Ahmadis fleeing persecution, it has a very diverse ethnic mixture. Most of the populace speaks Urdu and Punjabi while most of the students are also fluent in English. As the city is the only Ahmadi majority city in Pakistan, its residents face legal discrimination due to Ordinance XX. They have been denied the right to hold peaceful religious gatherings since 1983. In 1989, a report was registered by Punjab police against the whole of the population of the city for the crime that they were displaying Quranic texts on their graves and buildings. Rabwah covers an area of about 24 km2 (9.3 sq mi). It is located in the temperate region of Central Punjab, approximately halfway between Faisalabad and Sargodha. The River Chenab surrounds the city on its Eastern and Southern sides. The area is higher than the surrounding plains due to the dry hills which dot the landscape, providing a natural barrier against floods. These hills are part of the Kirana Hills, also known locally as the Black Mountains, which reach from Sargodha to Jhang. The area, which used to be arid and barren, has been transformed through more than fifty years of aggressive plantation into a lush green city. According to the Köppen climate classification Rabwah experiences an arid climate ("BWh"). As it is located in the temperate area of northwestern Subcontinent it shares the weather of the subcontinent. Rabwah has hot summers and cold winters. The summer season is from April to October where May, is the hottest month, in which temperatures regularly reach 40 °C. The location in the centre of the dry plains is responsible for dust storms in the summer. Summer also brings the Indian Monsoon which increases the precipitation in the month of June and July to above 80 mm.