Explanation:

India's first Civill Disobedience Movement, Champaran Satyagraha, was launched by Mahatma  Gandhi to protest against the injustice meted out to tenant farmers in Champaran district of Bihar. It is  widely regarded as the place where Gandhi made his first experiments in Satyagraha and then  replicated them elsewhere. During British rule, many tenant farmers were forced to growindigo on  part of their land, often working under oppressive conditions. This indigo was used to make dye. But  the demand for indigo dropped when the Germans invented a cheaper artificial dye. However, during the First World War, the German dye ceased to be available and indigo once more became profitable  for the British. Many tenants were forced again into indigo cultivation - required by their lease under  British law. This led to anger and resentment among the tenants, with several alleging that the  landlords were using strong- arm tactics. A farmer named Raj Kumar Shukla appealed to Gandhiji to  organize the struggle to save the plantation workers. Shukla's persuasion paid off and Gandhi visited  the district in April 1917 and Satyagraha started. The main objective of the Satyagraha was to create  awakening among the peasants against the European planters.