Touching the feet of elders is a traditional gesture in Indian culture that shows respect, humility and blessings. Bhaktibharat here shares some basic "rules" or etiquette that are commonly followed:
When do we touch the feet and whose feet?
❀ Gods and Goddesses and Sadhus, Saints
❀ Elders: Parents, grandparents, teachers, elders in the family.
❀ Auspicious occasions: Festivals, weddings, birthdays, Pujas, first day of school/office, etc.
❀ Before/after important functions: Exams, travel, ceremonies.
How to touch feet?
❀ Bend from the waist, keep your back straight (do not kneel unless the elder himself tells you to).
❀ Gently touch the toes/feet of the elders with both hands.
❀ Elders usually give blessings by placing their hands on your head or touching your back.
❀ Stand up and respectfully touch your forehead with your hand if you wish.
Bhaktibharat expresses that usually elders place their right hand on your head and bless you: "Live long", "Be happy", "Bless you", etc.
Major cultural meanings
❀ Right hand: Symbolizes ability/action—used for touch.
❀ Left hand: Used with the right hand to represent perfection.
❀ Represents humility and renunciation of ego.
❀ The blessings received are believed to provide wisdom, prosperity and protection.
Read in detail about Importance of Different Threads:
Importance of Different Threads in Hinduism
Whose feet should you not touch?
❀ People younger than you.
❀ Equals in age (unless they are spiritual gurus).
❀ People who may themselves feel uncomfortable with the act.
Touching someone's feet — called charan sparsh — is a common sign of respect in Indian culture.