Kalsia State, Hoshiarpur district, Gurdaspur district, Sialkot District, Gujrat District, Jhelum District, Rawalpindi District, and Attock District. The North−West Dry Area geographical division included Montgomery District, Shahpur District, Mianwali District, Lyallpur District, Jhang District, Multan District, Bahawalpur State, Muzaffargarh District, Dera Ghazi Khan District, and the Biloch Trans–Frontier Tract. Post-partition In the present-day, the vast majority of Pakistani Punjabis are Sunni Muslim by faith, but also include significant minority faiths, such as Shia Muslims, Ahmadi Muslims, Hindus, Sikhs and Christians. Sikhism, founded by Guru Nanak is the main religion practised in the post-1966 Indian Punjab state. About 57.7% of the population of Punjab state is Sikh, 38.5% is Hindu, with the remaining population including Muslims, Christians, and Jains. Punjab state contains the holy Sikh cities of Amritsar, Anandpur Sahib, Tarn Taran Sahib, Fatehgarh Sahib and Chamkaur Sahib. The Punjab was home to several Sufi saints, and Sufism is well established in the region. Also, Kirpal Singh revered the Sikh Gurus as saints. Castes and tribes The Punjab region is diverse. As seen in historic census data taken in the colonial era, many castes, subcastes & tribes all formed parts of the various ethnic groups in Punjab Province, contemporarily known as Punjabis, Saraikis, Haryanvis, Hindkowans, Dogras, Paharis, and more. Economy The historical region of Punjab produce a relatively high proportion of India and Pakistan's food output respectively. The region has been used for extensive wheat farming. In addition, rice, cotton, sugarcane, fruit, and vegetables are also grown. The agricultural output of the Punjab region in Pakistan contributes significantly to Pakistan's GDP. Both Indian and Pakistani Punjab is considered to have the best infrastructure of their respective countries. The Indian state of Punjab is currently the 16th richest state or the eighth richest large state of India. Pakistani Punjab produces 68% of Pakistan's foodgrain production. Its share of Pakistan's GDP has historically ranged from 51.8% to 54.7%. Called "The Granary of India" or "The Bread Basket of India," Indian Punjab produces 1% of the world's rice, 2% of its wheat, and 2% of its cotton. In 2001, it was recorded that farmers made up 39% of Indian Punjab's workforce. In the Punjab region of Pakistan, 42.3% of the labour force is engaged in the agriculture sector. Alternatively, Punjab is also adding to the economy with the increase in employment of Punjab youth in the private sector. Government schemes such as 'Ghar Ghar