Valmiki Ramayana Sundara Kanda Sarga 53 Shloka 18
Original Shlokaशङ्खभेरीनिनादैस्तं घोषयन्तः स्वकर्मभिः। राक्षसाः क्रूरकर्माणश्चारयन्ति स्म तां पुरीम्।।5.53.18।।
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क्रूरकर्मणः cruel in action, राक्षसाः ogres, तम् him, शङ्खभेरीनिनादैश्च by sounding conches and beating drums, स्वकर्मभिः with their actions, घोषयन्तः while announcing, तां पुरीम् that city, चारयन्ति स्म paraded him.
The cruel demons started blowing conches and beating drums. They paraded him in the city announcing their deeds.