usana jivayam asa
tatra—on that hill; avinasta-avayavan—the demons who had been killed but whose bodily parts had not been lost; vidyamana-sirodharan—whose heads were still existing on their bodies; usanah—Sukracarya; jivayam asa—brought to life; samjivanya—by the Samjivani mantra; sva-vidyaya—by his own achievement.
There, on that hill, Sukracarya brought to life all the dead demoniac soldiers who had not lost their heads, trunks and limbs. He achieved this by his own mantra, known as Samjivani.
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