Karwa Chauth, observed by married women for the well-being of their husbands, requires a beautifully prepared mandir. Set up your mandir with an idol of Goddess Gauri and Lord Shiva. Decorate with red and white flowers, diyas, and traditional elements. Arrange the karva (earthen pot) with henna and vermillion. Use traditional fabrics and ornate decorations to reflect the ceremony's significance. A sacred and devotional mandir setup enhances the spiritual power of this ancient ritual of love and devotion for long marriage, prosperity, and family well-being.