Mahīdhara is the name of a person who lived a very long time ago in India. He was very smart and studied a lot, especially things called "Sanskrit" and "Vedas". These are very old languages and teachings that were very important in ancient India.
Mahīdhara wrote many books and commentaries on these teachings, which helped many people understand them better. His most famous book is called "Mahābhārata", which is a very long and important story in Indian culture.
Even though Mahīdhara lived a very long time ago, his teachings and books are still studied and appreciated today in modern India. He was a very important person in Indian history and his legacy continues to live on.