Who was the first Indian ruler to join the Subsidiary Alliance?

The first Indian ruler who joined the Subsidiary Alliance was –

Who was the first Indian native ruler to accept the system of the subsidiary alliance?

First Maratha Sardar to accept the subsidiary alliance of Lord Wellesley was-

Sindh Accepts Subsidiary Alliance in

Which one of the following was not included in the terms and conditions of Subsidiary Alliance System of Lord Wellesley?