Gandhiji launched his first Satyagraha in India as:

The correct answer is Option (2) → Champaran Satyagraha

After returning from South Africa in 1915, Gandhiji made his first satyagraha in India at Champaran, Bihar, in 1917. He took up the cause of the indigo farmers, who were forced by European planters to grow indigo on part of their land (the tinkathia system). The government set up an inquiry, and the system was ended.

It was followed by the Kheda Satyagraha and the Ahmedabad mill strike (1918); the Non-Cooperation Movement (1920) and the Civil Disobedience Movement (1930) came later.