Chota Nagpur Tributary States
The Chota Nagpur Tributary States or Chota Nagpur States were a group of small, non-salute states (minor princely states) during the British Raj in India, located on the Chota Nagpur Plateau. British suzerainty over the states was exercised through the government of the Bengal Presidency.
Source: Wikipedia — Chota Nagpur Tributary States (CC BY-SA 4.0)