This Surya Saptati Nama Stora – Seventy Names of Sun God is found in ninth chapter of the first half (poorvardha) of Kashi khanda
The hymn gives seventy names and then describes the how should these names be used to give arghya to Lord Surya during the sun rise and sun set and offer salutations to him,
Each name given in this hymn is a powerful mantra like epithet to the sun god and it helps us understand his nature and glories.
This is a hymn on sun god comprised of seventy sacred epithets, using for giving arghya (water visualized as being given in the hand of the deity, as a token of respect) Giving arghya to the sun blesses us with wealth, prosperity, and a long life. we are freed from our sins and reach the abode of the sun after leaving our body, says the phalashruti.