Matsya Purana — Catalogue of the Eighteen Puranas
इन्द्रद्युम्नप्रसङ्गेन ऋषिभ्यः शक्रसंनिधौ अष्टादश सहस्राणि लक्ष्मीकल्पानुषङ्गिकम् //
indradyumnaprasaṅgena ṛṣibhyaḥ śakrasaṃnidhau aṣṭādaśa sahasrāṇi lakṣmīkalpānuṣaṅgikam //
In connection with the episode of King Indradyumna, and in the very presence of Śakra (Indra), he related to the sages an ancillary account of the Lakṣmī-kalpa—eighteen thousand verses in extent.
It does not describe Pralaya directly; instead, it signals the Purana’s internal structure by referencing a large ancillary “Lakṣmī-kalpa” linked to the Indradyumna narrative.
Indirectly: by invoking King Indradyumna as the narrative occasion, it points to a royal exemplar whose story typically frames dharmic conduct, patronage, and ritual merit in Purāṇic teaching.
The verse highlights a ritual-textual unit (“Lakṣmī-kalpa”) and its extent, implying a formalized compendium of rites or observances transmitted to sages—useful for mapping Matsya Purana’s ritual and temple-oriented materials.