अन्वयः

पत्नीगणसमन्वित: together with his queens, राजा king Dasaratha, समाप्तदीक्षानियम: having observed the rules of initiation, सभृत्यबलवाहन: along with his servants, army chariots, पुरीम् city of Ayodhya, प्रविवेश entered.

M N Dutt

And the monarch, having observed all the rules of initiation, entered the palace with his equipage and retinue.

Summary

Having completed the prescribed vows (in respect of aswamedha), king Dasaratha together with his queens returned to the city of Ayodhya accompanied by his attendants, army and chariots.

पदच्छेदः

समाप्तदीक्षानियमः	समाप्त (√सम्-आप् + क्त)–दीक्षा–नियम (१.१)
पत्नीगणसमन्वितः	पत्नी–गण–समन्वित (१.१)
प्रविवेश	प्रविवेश (√प्र-विश् लिट् प्र.पु. एक.)
पुरीं	पुरी (२.१)
राजा	राजन् (१.१)
सभृत्यबलवाहनः	स (अव्ययः)–भृत्य–बल–वाहन (१.१)

छन्दः

अनुष्टुप् [८]

छन्दोविश्लेषणम्

१	२	३	४	५	६	७	८
स	मा	प्त	दी	क्षा	नि	य	मः
प	त्नी	ग	ण	स	म	न्वि	तः
प्र	वि	वे	श	पु	रीं	रा	जा
स	भृ	त्य	ब	ल	वा	ह	नः