Lying down on earth and with restricted diet Kumbhakarna was engaged in penances; the wise and noble Vibhishana, fasting and living on dry leaves, engaged in meditation and practised devout penances for as long a period.
अध:शायी कुम्भकर्णो यताहारो यतव्रतः। विभीषणः शीर्णपर्णमेकमभ्यवहारयन्॥ उपवासरतिर्धीमान् सदा जप्यपरायणः। तमेव कालमातिष्ठत् तीव्र तप उदारधीः॥