Final answer:
To prevent the Rowlatt Bill Law, Mahatma Gandhi encouraged nonviolent protests, including acts like the Salt March and the Non-Cooperation Movement to boycott British goods.
Step-by-step explanation:
Mahatma Gandhi adopted a range of nonviolent methods to oppose British rule and policies in India, such as the Rowlatt Act. His approaches included advocating for civil disobedience, where Indians were encouraged to peacefully reject unjust laws and British products. To prevent the implementation of the Rowlatt Bill Law, Gandhi encouraged nonviolent protests which included acts such as the Salt March. Gandhi, who became head of the Indian National Congress in 1921, led India in a grassroots movement for self-rule which emphasized nonviolent resistance to the British colonial power.
Gandhi's efforts included organizing the Non-Cooperation Movement in the 1920s, which explicitly called for the boycott of British goods. This movement was part of a broader strategy of civil disobedience that aimed to erode British control and economic power in India, ultimately leading toward independence. Gandhi's actions, including the historic Salt March against the British salt tax, were pivotal in strengthening the civil disobedience movement and highlighting the right for India's self-sovereignty.