Bindi - Have you ever noticed the red dot some women wear on their foreheads? This dot is called a bindi. Bindi is derived from the Sanskrit word bindu, meaning "a drop." It is supposed to signify the mystical third eye of a person. When it is properly marked, it becomes the central point of the base of the creation. It is a symbol of auspiciousness, good fortune, and festivity. It denotes the woman's marriage status in most of North Indian communities but in South India it is a prerogative of all girls to wear a bindi.

A Bindi is either a small dot or a very large dot. Sometimes it is shaped like a long vertical line and sometimes it is very small with very complicated artistic designs. Men sometimes wear bindi (referred to as a kumkum) marks on their forehead, especially for traditional ceremonies. When getting married, a bride wears a bindi. She is supposed to step over the threshold of her married home with the red bindi on her forehead. The red color is supposed to predict prosperity for the home. Her bindi mark makes her the preserver of the family's welfare and progeny. This bindi dot has always received a place of importance in Indian customs. Queens used to apply bindis on the forehead of their husband to bring luck on the battlefield and to welcome him home. Bindis are still used in modern times to welcome guests.
Sources: http://www.indiaexpress.com/rangoli/humlog2.html

Garba - What is a Garba? A garba is a folk dance originating from the Indian state of Gujurat. People dance in circles while clapping hands and clicking wooden sticks at one another in pairs. Think of it as a fancy square dance if you will. The middle of the circle at times has a table with an Indian God in order to show respect for the dance and values it upholds.
Source: Neeru Sharma.