Adhyaya 73 — The Uttama Manvantara: Classes of Devas, Indra Sushanti, and the Royal Lineage
चतुर्युगानां संख्याता साधिका ह्येकसप्ततिः ।
कृतत्रेतादिसंज्ञानां यान्युक्तानि युगे मया ॥
caturyugānāṃ saṃkhyātā sādhikā hy ekasaptatiḥ | kṛtatretādisaṃjñānāṃ yāny uktāni yuge mayā ||
The number of caturyugas is stated as a little more than seventy-one—those yugas bearing the names Kṛta, Tretā, and so on, which I have described as yugas.
Human history is placed within vast, measurable cycles; this scale relativizes individual events and emphasizes long-term dharmic continuity across recurring ages.
Manvantara: purāṇas commonly quantify manvantara-duration in terms of caturyuga counts.
The ‘71 plus’ formulation points to transitional periods (sandhyā/sandhyāṃśa) around yuga/manvantara boundaries—liminal times where order is reconstituted.