The non-Brahmin Hindu castes started organizing at the beginning of the 20th century with the blessing of Chhatrapati Shahu, the ruler of the princely state of Kolhapur. The campaign took off in the early 1920s under the leadership of Keshavrao Jedhe and Baburao Javalkar. Both belonged to the Non-Brahmin party. Capturing the Ganpati and Shivaji festivals from Brahmin domination were their early goals. They combined nationalism with anti-casteism as the party's aims. Later on in the 1930s, Jedhe merged the non-Brahmin party with the Congress party and changed that party from an upper-caste dominated body to a more broadly based but also Maratha-dominated party. The early 20th century also saw the rise of Dr. Ambedkar who led the campaign for the rights of the Dalits caste that included his own Mahar caste.