Matsya Purana — Kailasa
रम्यं बिन्दुसरो नाम यत्र राजा भगीरथः गङ्गार्थे स तु राजर्षिर् उवास बहुलाः समाः //
ramyaṃ bindusaro nāma yatra rājā bhagīrathaḥ gaṅgārthe sa tu rājarṣir uvāsa bahulāḥ samāḥ //
There is a lovely lake named Bindusara, where King Bhagiratha—the royal sage (rājarṣi)—dwelt for many years, performing austerities to bring down the Gaṅgā.
This verse does not describe pralaya; it highlights a sacred place (Bindusara) associated with Bhagiratha’s long austerities undertaken to bring the river Ganga.
By portraying Bhagiratha as a rājarṣi who endures many years of disciplined effort for a public, dharmic goal (bringing Ganga), the verse models the kingly duty of self-sacrifice and perseverance for the welfare of ancestors and society.
The verse’s ritual significance is tirtha-centered: Bindusara is marked as a sacred lake connected with tapas for Ganga; such identification underpins later practices of pilgrimage, bathing, and merit-making at named water-tirthas.