 साऽहं तपश्चरिष्यामि गर्भं मे दातुमर्हसि।ईश्वरं शक्रहन्तारं त्वमनुज्ञातुमर्हसि।। 
 I shall practise austerities. You ought to grant me a son who would be the supreme ruler of the world and capable of killing Indra. You can say yes if you will". 