On October 31, 2023, Sardar Patel would have turned 148 years old. His Birth Anniversary is also observed as National Unity Day, or "Rashtriya Ekta Diwas," in honour of his extraordinary accomplishment of assisting in the unification of over 550 princely states into the Union of India. 🙏🏻 Sardar Vallabhbhai Patel Birth Anniversary 2023: Know Key Facts About 'Iron Man of India', Instrumental in Integration of Over 550 Princely States Into Independent India.