Rishi: Unspecified in VS framing; Ṛgvedic origin.
Devata: Indra
Chandas: Anuṣṭubh/Tr̥ṣṭubh fragmentary; requires metrical verification due to excerpted form
Samhita Patha (Devanagari)कया॑ नश्चि॒त्र आ भु॑वदू॒ती स॒दावृ॑ध॒: सखा॑ । कया॒ शचि॑ष्ठया वृ॒ता ॥
Transliterationkáyā naś citra ā́ bhuvad ūtī́ sadā́-vṛdhaḥ sákhā | káyā śácīṣṭhayā vṛtā́ ||
Translationいかなる助けによって、奇しき御方よ、常に増し栄える मित्र(友)なるあなたの護りは我らに来たるのか。いかなる最も霊妙なる शक्ति(力)によって、あなたは選び取られ、得らるべきか。
Padapatha (Word Analysis)कया॑ । नः॒ । चि॒त्र॒ । आ । भु॒व॒त् । ऊ॒ती । स॒दा-वृ॑धः । सखा॑ । कया॑ । शचि॑ष्ठया । वृ॒ता ।
Word by Wordकयाby which? (by what means?) भुवत्may (he/it) be / may it come to be वृधःever-increasing, strengthening शचिष्ठयाwith the most potent (power) वृताchosen, selected, sought 
Viniyoga (Ritual Application)