Matsya Purana — Design and Splendour of Tripura: Maya’s Threefold Moving Fortress
तारकस्य पुरं तत्र शतयोजनमन्तरम् विद्युन्मालिपुरं चापि शतयोजनके ऽन्तरे //
tārakasya puraṃ tatra śatayojanamantaram vidyunmālipuraṃ cāpi śatayojanake 'ntare //
There, the city of Tāraka lies at a distance of one hundred yojanas; and the city of Vidyunmālī too is separated by a gap of one hundred yojanas.
This verse does not describe Pralaya directly; it focuses on spatial ordering—measuring and situating cities at fixed yojana intervals—typical of the Purāṇa’s descriptive geography and planning-oriented passages.
By emphasizing standardized distances and orderly placement of settlements, it aligns with a king’s duty to plan and maintain well-structured cities, routes, and jurisdictions—core concerns of rājanīti and public welfare in Purāṇic governance ideals.
The key significance is measurement discipline: the verse uses the yojana as a planning metric, implying that sacred/ideal city layouts follow precise spacing—an approach compatible with Vāstu-vidyā principles of proportion, orientation, and ordered settlement design.