Ramayana
स निकुम्भं च कुम्भं च कुम्भकर्णात्मजावुभौ । प्रेषयामाससङ्कृद्धोराक्षससैर्बहुभिस्सह ॥ ६-७५-४७
Seized with anger, he sent for Kumbha and Nikumbha, both the sons of Kumbhakarna and many Rakshasas. ॥ 6-75-47॥
english translation
sa nikumbhaM ca kumbhaM ca kumbhakarNAtmajAvubhau । preSayAmAsasaGkRddhorAkSasasairbahubhissaha ॥ 6-75-47
hk transliteration by Sanscript