What is INM in Indian History? (Indian National Movement)

In History, INM stands for the Indian National Movement.

It was the massive, organized, nationwide political and social struggle led by the people of India to completely violently or non-violently overthrow the oppressive British Empire and achieve absolute freedom (Purna Swaraj). It officially lasted for nearly 90 years.

Historians divide the movement into three distinct phases based on the massive leadership styles:

• The Moderate Phase (1885 - 1905): Led by highly educated leaders like Dadabhai Naoroji. They did not want to fight; they peacefully requested the British for basic civil rights using massive petitions and legal letters.
• The Extremist Phase (1905 - 1920): Led by massive aggressive leaders like Lal-Bal-Pal (Lala Lajpat Rai, Bal Gangadhar Tilak, Bipin Chandra Pal). They rejected peaceful begging. They heavily demanded 'Swaraj' (Self-rule) through massive boycotts of British goods and aggressive protests.
• The Gandhian Phase (1920 - 1947): The absolute final and most massive phase. Mahatma Gandhi took control and introduced 'Satyagraha' and Non-Violence. He organized massive nationwide strikes like the Non-Cooperation Movement, Civil Disobedience (Salt March), and the final 'Quit India Movement', which ultimately broke the back of the British Empire.