Bharadvaja: He is one of the seven great rsis and was present at the time of the birth ceremony of Arjuna. The powerful rsi sometimes undertook severe penances on the shore of the Ganges, and his asrama is still celebrated at Prayagadhama. It is learned that this rsi, while taking bath in the Ganges, happened to meet Ghrtaci, one of the beautiful society girls of heaven, and thus he discharged semen, which was kept and preserved in an earthen pot and from which Drona was born.
SB 1.9.6-7
