A Jagir (IAST: Jāgīr), also spelled as Jageer, was a type of feudal land grant in South Asia at the foundation of its Jagirdar system. It developed during the Islamic rule era of the Indian subcontinent, starting in the early 13th century, wherein the powers to govern and collect tax from an estate was granted to an appointee of the state. The tenants were considered to be in the servitude of the jagirdar. There were two forms of jagir, one conditional and other unconditional. The conditional jagir required the governing family to maintain troops and provide their service to the state when asked. The land grant was called iqta, usually for a holder's lifetime, and the land reverted to the state upon the death of the jagirdar.
The jagirdar system was introduced by the Delhi Sultanate, and continued during the Mughal Empire, but with a difference. In the Mughal times, the jagirdar collected taxes which paid his salary and rest to the Mughal treasury, while the administration and military authority was given to a separate Mughal appointee. After the collapse of Mughal Empire, the system of jagirs was retained by Rajput and Sikh kingdoms, and later in a form by the British East India Company.
Jagir (Devanagari: जागीर, Persian: جاگیر) is a Persian word, and means "holding land". The word is derived from ja meaning "place", -gir meaning "keeping, holding".
The Supreme Court of India used the following definition of the Jagir from Rajasthan Land Reforms and Resumption of Jagirs Act (Rajasthan Act VI of 1952) in its Thakur Amar Singhji vs State Of Rajasthan(And Other ...) on 15 April 1955 judgement:
The word 'jagir' connoted originally grants made by Rajput Rulers to their clansmen for military services rendered or to be rendered. Later on grants made for religious and charitable purposes and even to non-Rajputs were called jagirs, and both in its popular sense and legislative practice, the word jagir came to be used as connoting all grants which conferred on the grantees rights in respect of land revenue, and that is the sense in which the word jagir should be construed in Article 31-A.