नन्दिकेश्वरशिवलिङ्गमाहात्म्यवर्णनम्
The Māhātmya of the Nandikeśvara Śiva-liṅga
ऋषय ऊचुः । कथं गंगा समायाता वैशाखे सप्तमीदिने । नर्मदायां विशेषेण सूतैतद्वर्णय प्रभो
ṛṣaya ūcuḥ | kathaṃ gaṃgā samāyātā vaiśākhe saptamīdine | narmadāyāṃ viśeṣeṇa sūtaitadvarṇaya prabho
The sages said: “How did the river Gaṅgā come to be present on the seventh lunar day of the month of Vaiśākha—especially at the Narmadā? O Sūta, venerable one, describe this to us.”
The sages (ṛṣis) at Naimiṣāraṇya
Jyotirlinga: Oṃkāreśvara
Sthala Purana: The question targets the Narmadā region where Oṃkāra (Mandhātā island) is famed; the chapter-turn suggests a tīrtha-māhātmya explaining Gaṅgā’s special presence/manifestation at Narmadā on Vaiśākha Saptamī (a confluence-miracle motif common in Purāṇic tīrtha lore).
Significance: Bathing/ritual at Narmadā with Gaṅgā-tulya (or Gaṅgā-sannidhi) on the specified tithi is framed as exceptionally merit-giving; supports the idea of intensified tīrtha-phala on calendrically marked days.
It frames a sacred-tīrtha inquiry: the sages seek the hidden Shaiva reason why Gaṅgā’s sanctity manifests on a specific lunar day at Narmadā, implying that time (tithi) and place (tīrtha) become especially grace-filled when connected to Śiva’s sacred geography.
In the Koṭirudra Saṃhitā, tīrthas and rivers are typically introduced to magnify Jyotirliṅga pilgrimage and Saguna Śiva’s accessible grace; this question prepares the narrative that links a particular river-observance to Śiva’s manifested presence and the merit of liṅga-centered worship nearby.
The verse points toward a Vaiśākha Saptamī tīrtha-observance—especially bathing and devotional acts at Narmadā—performed with Śiva-smaraṇa (remembrance), mantra-japa (such as the Pañcākṣarī “Om Namaḥ Śivāya”), and offerings appropriate to a Śaiva pilgrimage context.