What are the four unique customs of Indians in their daily life? I would be grateful for your advice.

The color white is taboo, and it is customary to use lilies as mourners

India worships the cow as sacred, and it is taboo to eat beef and use cowhide products. They worship snakes and regard the killing of snakes as an offense against the gods

Shaking the head to indicate approval and nodding the head to indicate disapproval.

Taking food, gifts and offering tea with the right hand, not with the left or with both hands