Neelkanth Linga is a very rare form of Shivling found in the Narmada River. Neelakantha is pure white in color and This linga symbolically represents Shiva who drank the poison Halahala that appeared from Samdura Manthan or Churning of ocean. Shiva got the name Neelkanth or the one with blue throat after this incident.Naturally occurring Neelakanth Linga are found in the Narmada River.