The practice of land grants originated in the Satavahana period.

Explanation:
The Satavahana dynasty ruled over a significant part of the Indian subcontinent from the 3rd century BCE to the 3rd century CE. They were known for their administrative and political innovations, one of which was the practice of land grants.

The land grants were essentially the transfer of land ownership from the king or the state to individuals or institutions. These grants were given to various individuals, including nobles, officials, religious institutions, and sometimes even common people. This practice was a way for the rulers to reward and honor their loyal supporters and to maintain social harmony.

The land grants were usually made in the form of written inscriptions on stone pillars or copper plates. These inscriptions contained details about the grant, including the name of the recipient, the extent of the land, the rights and privileges associated with it, and any conditions or obligations attached to the grant.

The land grants played a crucial role in the socio-economic development of the region. They provided security of tenure to the recipients, allowing them to cultivate the land and enjoy the benefits of their labor. In return, the recipients were expected to pay taxes or provide certain services to the state.

The land grants also had religious and cultural significance. Many of the grants were made to religious institutions such as temples and monasteries, which played a vital role in the society. These grants helped in the maintenance and expansion of these institutions and supported the religious activities they undertook.

The practice of land grants continued even after the Satavahana period and was adopted by subsequent dynasties such as the Gupta, Chola, and Vijayanagara empires. It played a significant role in shaping the agrarian economy and the social structure of ancient India.

In conclusion, the practice of land grants originated in the Satavahana period and continued to be an essential aspect of governance and social structure in ancient India.