Sonu Nigam, Dr Palash Sen, and Tanishk Bagchi discuss the significance of Bhai Dooj and its evolution. Sonu Nigam highlights the importance of evolving traditions and celebrating festivals with a progressive attitude. Dr Palash Sen expresses her gratitude for her upbringing and the special teeka she makes for her. Tanishk Bagchi emphasizes the role of his sisters as his source …