Valmiki Ramayana Yuddha Kanda Sarga 46 Shloka 28
Original Shlokaहर्षेणतुसमाविष्टइन्द्रजित्समितिञ्जयः ।।6.46.28।। प्रविवेशपुरींलङ्कांहर्षयन् सर्वनैर्वृतान् ।
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समितिञ्जयः one who is victorious in battles, इन्द्रजित् Indrajith, हर्षेण felt happy, समाविष्टः collected there, सर्वनैर्वतान् for all Rakshasas, हर्षयन् creating happiness, लङ्कांपुरीम् Lanka city, प्रविवेश entered
Indrajith, who is victorious in battles, feeling happy and creating happiness to all Rakshasas collected there entered the city of Lanka.