Shloka 6.43.9
द्वन्द्वयुद्धप्रवृत्तिः (Dvandva-Yuddha: The Onset of Single Combats)
तपनेनगजस्सार्धंराक्षसेनमहाबलः ।निकुम्भेनमहातेजानीलोऽपिसमयुध्यत ।।6.43.9।।
tapanena gajaḥ sārdhaṃ rākṣasena mahābalaḥ |
nikumbhena mahātejā nīlo 'pi samayudhyata ||6.43.9||
Gaja, a warrior of great strength, fought the rākṣasa Tapana; and Nīla too, radiant in prowess, battled Nikumbha.
Gaja of great strength fought with Rakshasa Tapa, and highly energetic Neela fought with Nikumbha.
Dharma is shown as disciplined participation in a collective struggle for justice: each warrior accepts responsibility, meeting an opponent without abandoning the larger cause.
The battlefield breaks into multiple simultaneous duels; Gaja engages Tapana while Nīla engages Nikumbha.
Valor in service: strength (Gaja) and brilliance/energy (Nīla) are presented as virtues directed toward protecting the righteous side.