Explain Dadni.

"Dadni" refers to a historical revenue system prevalent in parts of India during various periods, particularly under the Mughal Empire. The term is associated with the practice of advanced revenue payments or loans made by revenue farmers or local intermediaries to the state.

Under the Dadni system, revenue farmers, known as "Zamindars" or "Jagirdars," would make an upfront payment of a lump sum to the imperial treasury in exchange for the right to collect land revenue from a specific area. This lump sum payment, also called "Dadni," represented an advance on the anticipated revenue that the farmer expected to collect from the land.

The Dadni system served as a financial arrangement between the state and revenue farmers, allowing the state to receive immediate revenue while providing financial flexibility to the farmers. However, the system could lead to exploitation and hardship for the peasants, as the revenue farmers sought to recover their advance payments by imposing heavy taxes on the local population.

While Dadni was a method of resource mobilization for the state, it also contributed to the economic challenges faced by the agrarian communities. The system underwent variations and reforms over time, reflecting the complexities of revenue administration during different periods in Indian history.