pratisamyuyudhuh sastrair
tatah-thereafter; sura-ganah-the demigods; sarve-all of them; sudhaya-by the nectar; pitaya-which had been drunk; edhitah-being enlivened by such drinking; pratisamyuyudhuh-they counterattacked the demons; sastraih-by regular weapons; narayana-pada-asrayah-their real weapon being shelter at the lotus feet of Narayana.