Explanation:

Statement 1: Plantation workers were not permitted to leave the tea gardens without permission and in fact they were rarely given such permission. When they heard of the Non-Cooperation Movement, thousands of workers defied the authorities, left the plantations and headed home.They believed that Gandhi Raj was coming and everyone would be given land in their own villages.Hence, in opposition to such acts, many participated in the movement.
Statement 2: This was through a later inland migration act.The Inland Emigration Act of 1882, which introduced 'free' emigration and unlicensed recruitment,also strengthened the penal contract system. Contemporary accounts testify to the ruthlessness with which such power was exercised by the planters.All this reduced indentured wage labour employed on Assam plantations to forced labour or unfree labour.