The Rigveda celebrates इन्द्र 's might, service, and protection from foes [rv-10-133-1 ] rv • Book 10 . इन्द्र is acknowledged for sending rivers downward, slaying the serpent अहि , and granting desires without rivalry [rv-10-133-2 ] rv • Book 10 . Devotees implore इन्द्र to help vanquish foes and bless them with wealth [rv-10-133-3 ] rv • Book 10 . The hymn calls for essential sustenance from इन्द्र in the form of an abundantly flowing cow [rv-10-133-7 ] rv • Book 10 .