Watch: Frost forms on grass in Kodaikanal as temp dips

As parts of the country are witnessing dense fog, Tamil Nadu witnessed a dip in temperature on February 13. A layer of frost formed on the grass in Tamil Nadu's Kodaikanal. Frost is the thin layer of ice on a solid surface, which forms from water vapour above the freezing point. Formation of the frost is an eye-catching moment for the tourists.