The Mallaah are the traditional boatmen and fishermen tribes or communities of North India, East India, NortheasternIndia and Pakistan. A significant number of Mallah are also found in Nepal and Bangladesh. In the Indian state of Bihar, the term Nishad includes the Mallah and refers to communities whose traditional occupation centred on rivers. The word 'mallaah is said to come from an Arabic word ملاح which means a motion of moving like bird’s wing. In Bengalithe wordsmajhi and mallah usually go together and refer to communities affiliated with the river and sea. Those of India are largely Hindu, with a small Muslim minority, while those of Pakistan are Muslim.
In North India
Many Mallaah are now cultivators, with a few now have also taken to other occupations. In Uttar Pradesh, they speak Khari boli, Awadhi and Hindi. The majority of the community are Hindu, although there are a small number of Muslim Mallah. In Bihar, they are both cultivators and boatmen. They claim descent from the Hindu god Nisadh. They speak the Angika dialect of Maithili and Bhojpuri dialect of Hindi. The community consist of three sub-castes, the Dhoar, Parbattikurin, and Semeri. In North India, the Mallaah have set up a caste association, the Akhil Bharitiya Nishad Sabha, which acts as a community welfare association..
In Sindh, the Mallaah are traditionally boatmen and fisherfolk, living along the inlets of the Indus delta. They speak Sindhi, and are close associated with Mohana tribe. The Mallaah are found mainly in the coastal districts of Thatta and Badin, and most are largely still fishermen. Many have seen their traditional areas of habitation washed away by the sea. The Indus Delta is also silting, which makes cultivation difficult. An important subsidiary occupation is animal husbandry, with the Mallaah raising cattle. Although living in close proximity to the Jath community, who customs are similar to the Mallaah, there is almost no intermarriage. The Mallaah community consists of a number of clans, referred to as nukh, the largest Mallaah nukh being the Dablo.
In Punjab, the boatmen belong either to the Mallaah or Jhabel tribe. In south west Punjab, they are often regarded as a clan of Rajputs, and found mainly along the banks of the Indus. They extend as far north as Dera Ismail Khan District of Khyber Pakhtunkhwa, where there settlements are found mainly along the banks of the Indus. In this region, many Mallaah are cultivators, and have given up their occupation as boatmen. They generally combine their specialized occupation of boat management with other occupations such as fishing and the growing of waternuts. In neighbouring Punjab, the Mallaah are found mainly in the districts of Muzaffargarh, Dera Ghazi Khan, Rajanpur, Uch Sharief and Layyah, and said to be by origin Jhinwar. While Bahawalpur, the Mallaah, Mohana and Jhabel are said to have a common origin, with Mohana being fishermen, the Mallaah being boatmen and Jhabel being cultivators. The Mallah speak Seraiki, and are entirely Sunni. There are also Mallaah communities in the Hazara Division of Khyber-Pakhtunkhwa. They live along the banks of the Indus in the Haripur and Mansehra districts and speak Hindko, a dialect of Punjabi.