The term ‘ekaharya’ is associated with the Indian classical dance tradition where one dancer takes on multiple roles in a single performance. This technique is particularly found in Bharatanatyam. Bharatanatyam, a classical dance form originating from Tamil Nadu, India, depicts various characters through the use of expressive gestures and facial expressions, allowing a single dancer to portray numerous roles effectively. Thus, the correct answer to the question is Bharatanatyam.