Statements A, B, and C are correct: A) It was connected with the peasants: Yes, it addressed the grievances of indigo cultivators in Champaran. B) It was launched against 'Tinkathia' system: Yes, this system forced peasants to grow indigo on 3/20th of their land. C) Dr. Rajendra Prasad and J.B. Kripalani co-operated with M.K. Gandhi in it: Yes, prominent local leaders and lawyers assisted Gandhi in this Satyagraha. D) It was the first movement launched by M.K. Gandhi on All India level: This is incorrect. The Champaran Satyagraha (1917) was localized to Champaran. Gandhi's first all-India level movements were the Rowlatt Satyagraha (1919) and more notably, the Non- Cooperation Movement (1920-22).