In which Congress session, the word "swaraj" mentioned for first time?

In which year congress session happened in Bihar first time?

In which congress session first time Jana Gana Mana was sung?

Self-government or swaraj was to be the goal of the Congress. In which congress session it was declared?

In which one of the following sessions, Congress declared its policy towards the Indian States for the first time?

After Which session of congress, Swarajist party formed?