The festival in India that emphasizes unity and diversity through artistic performances and exhibitions is often the Republic Day or Navratri. These festivals feature a wide range of cultural performances, including dance, music, and visual arts that represent India's rich heritage. Activities often involve participants from various backgrounds, highlighting the nation’s cultural tapestry. By showcasing the diversity of the country, these festivals promote inclusivity and foster a sense of national pride, celebrating the many cultures that coexist within India.