Indian physicians and philosophers believe that piercing the ears helps in the development of intellect, power of thinking and decision making faculties. Talkativeness fritters away life energy. Ear piercing helps in speech-restraint. It helps to reduce impertinent behavior and the ear-channels become free from disorders. This idea appeals to the Western world as well, and so they are getting their ears pierced to wear fancy earrings as a mark of fashion.
As per Human Anatomy it is said that, the nerve connecting brain, cervical and kidney passes through a human's right ear and if the pressure there could be controlled, then the kidney functioning can be just maintained and protected from damages. So the continuous friction caused at the ear tips keeps the renal and bowel problems in control.
Piercing the ears has a great importance in Indian ethos.