Correct Answer - Option 3 : Amarkantak
The river Narmada has its source at Amarkantak.
Important facts about River Narmada:
- The source of the Narmada is a small reservoir, known as the Narmada Kund, located at Amarkantak on the Amarkantak Plateau in the Anuppur District, Shahdol zone of eastern Madhya Pradesh.
- The total length of the river is 1312 kilometers (815 miles) from the source to the sea.
- The Narmada finally merges into the Gulf of Khambhat (Arabian Sea).
- Narmada is considered the mother and giver of peace.
- The river basin is home to India's best teak and hardwood forests.
- Large irrigation projects have been completed on the Narmada River, which supplies water to hundreds of farmers all over central India.
- Also known as the Rewa or Purvaganga, the Narmada River is considered the holiest of them all.
- Narmada is also known as the ‘Life Line of Madhya Pradesh’
- The Sardar Sarovar Dam is a concrete gravity dam built on the Narmada river in Navagam near Kevadiya, Narmada District, Gujarat
Hence, Amarkantak is the correct answer.