Who gave the battle-cry: "Swaraj is my birth right and I will have it"? Mention one of his contributions to the national movement.

Bal Gangadhar Tilak gave the battle-cry: "Swaraj is my birth right and I will have it".

One of his contributions to the national movement was that beginning of the celebration of the Ganpati and Shivaji festival whose object was to instil in the masses a spirit of discipline and patriotism.