Rashtriya Ekta Diwas, or National Unity Day, is celebrated on October 31 to commemorate the birth anniversary of Sardar Vallabhbhai Patel, known as the "Iron Man of India." Patel played a crucial role in unifying the diverse princely states into a single nation after India gained independence in 1947. The day highlights the importance of unity, integrity, and nation-building.

Across India, 'Run for Unity' marathons are organized to promote the message of national integration. Various government institutions pay tribute to Patel’s efforts in creating a united India, while citizens engage in speeches and seminars discussing the significance of unity in diversity.