Mandhata, also called Omkareshwar or Shivapuri and ancient Mahishmati, capital of Avanti Mahajanpada is a riverine island in the Narmada River in Khandwa district, Madhya Pradesh, India. Omkareshwar Jyotirlinga is situated on the southern part of the island. Omkareshwar Mandhata is located on the Mandhata hill on the banks of the Narmada.

Mandhata refers to both a legendary ancient king in Hindu mythology and a sacred river island in Madhya Pradesh, India, which is home to the famous Omkareshwar Jyotirlinga shrine.

• King Mandhata dynasty: A powerful emperor of the Solar Dynasty (Suryavamsha) and an ancestor of Lord Rama.

Birth Legend: Puranas describe his unusual birth from his father, King Yuvanashwa, who accidentally drank a sacred ritual potion.

Legacy: Known as a universal monarch who performed numerous grand sacrifices and is credited with composing a hymn in the Rig Veda.

• Mandhata Island (Omkareshwar)

• Location:  Situated on the Narmada River in the Khandwa district of Madhya Pradesh.

• Geography: The island is shaped naturally like the sacred Hindu symbol "Om"
• 
  

 Significance: Houses the revered Omkar Mandhata Temple, dedicated to one of the 12 holy Jyotirlinga shrines of Lord Shiva.

Mythological and Historical Significance king Mandhata: 

A powerful emperor of the Suryavamsha (Solar Dynasty) and ancestor to Lord Rama.

Unusual Birth: Puranic tales note his birth from King Yuvanashwa after accidentally drinking a ritual potion.

Ancient Roots: Historically linked with Shivapuri and ancient capital sites along the Narmada.

Key Shrines

Omkareshwar Temple: Houses one of the 12 holy Jyotirlinga shrines of Lord Shiva.

Mamleshwar Temple: Located on the southern bank/coast, holding equal religious status.