अन्वयः

महावीर्यः of great prowess, गिरिकूटोपमः resembling mountain, हरिः Monkey, सुषेणस्तु Sushena also, तत्र there, कामरूपिभिः who change their form according to their will, बहुभिः many, वानरैः Vanaras, सम्वृतः surrounded.

M N Dutt

At the command of Sugrīva, the exceedingly powerful monkey-Susena, resembling a mountain-summit, surrounded by a large number of monkeys capable of assuming shapes at pleasure, began to range from door to door; like the Moon ranging the stars.

Summary

Sushena of great prowess, who resembled a mountain in form stood there surrounded by many Vanaras who could change their form at their will.

पदच्छेदः

सुषेणस्तु	सुषेण (१.१)–तु (अव्ययः)
महावीर्यो	महत्–वीर्य (१.१)
गिरिकूटोपमो	गिरि–कूट–उपम (१.१)
हरिः	हरि (१.१)
बहुभिः	बहु (३.३)
संवृतस्तत्र	संवृत (√सम्-वृ + क्त, १.१)–तत्र (अव्ययः)
वानरैः	वानर (३.३)
कामरूपिभिः	कामरूपिन् (३.३)

छन्दः

अनुष्टुप् [८]

छन्दोविश्लेषणम्

१	२	३	४	५	६	७	८
सु	षे	ण	स्तु	म	हा	वी	र्यो
गि	रि	कू	टो	प	मो	ह	रिः
ब	हु	भिः	सं	वृ	त	स्त	त्र
वा	न	रैः	का	म	रू	पि	भिः