Which Satyagraha of Gandhiji forced the British to abolish Theen Kathiya (Grow Indigo) system?(or) Where did Gandhiji first practice Satyagraha in India?

Which Satyagraha of Gandhiji forced the British to abolish Theen Kathi

1.	Which Satyagraha of Gandhiji forced the British to abolish Theen Kathiya (Grow Indigo) system?(or) Where did Gandhiji first practice Satyagraha in India?
Answer» Gandhiji organized the peasant movement in Champaran in 1917.