त्वम् you, मायाम् disguised, प्रविष्टः entered, मायावी trickster, स्वयम् yourself, रावणः यदि if you are Ravana, मे to me, भूयः again, सन्तापम् grief, उत्पादयसि you have created, तत् that, शोभनम् न not good.

"If you are that trickster Ravana who appears incognito before me, it is not good for you. You are causing grief again.