The slogan "Inquilab Zindabad," meaning "Long Live the Revolution," was popularized by Bhagat Singh and his associates during India's freedom struggle. It became a rallying cry for the youth to join the independence movement. The slogan represented a call for societal and political change, symbolizing the fight against colonial rule and oppression. Bhagat Singh's revolutionary activities and ideological influence inspired generations to strive for a free and equal India.