Lassi is a popular and traditional yogurt-based drink of the Indian Subcontinent

Indian subcontinent

The Indian subcontinent, also Indian Subcontinent, Indo-Pak Subcontinent or South Asian Subcontinent is a region of the Asian continent on the Indian tectonic plate from the Hindu Kush or Hindu Koh, Himalayas and including the Kuen Lun and Karakoram ranges, forming a land mass which extends...

. It is made by blending yogurt with water and Indian spices. Traditional lassi (also known as salted lassi, or, simply lassi) is a savory drink sometimes flavored with ground roasted cumin

Cumin

Cumin is a flowering plant in the family Apiaceae, native from the east Mediterranean to India. Its seeds are used in the cuisines of many different cultures, in both whole and ground form.-Etymology:...

 while sweet lassi on the other hand is blended with sugar or fruits instead of spices.

In Dharmic religions, yogurt sweetened with honey is used while performing religious rituals.