Balarama is the divine son of Vasudeva and Rohini. He is also known as Rohini-nandana, the beloved son of Rohini. He was also entrusted to Nanda Maharaja along with His mother, Rohini, when Vasudeva embraced imprisonment by mutual agreement with Kamsa. So Nanda Maharaja is also the foster father of Baladeva along with Lord Krishna. Lord Krishna and Lord Baladeva were constant companions from Their very childhood, although They were stepbrothers. He is the plenary manifestation of the Supreme Personality of Godhead, and therefore He is as good and powerful as Lord Krishna. He was actually the seventh son of Devaki prior to the birth of Lord Krishna, but by the will of the Lord He was transferred to the womb of Rohini to escape the wrath of Kamsa. Sri Baladeva was also a class friend of Lord Sri Krishna as a student of Sandipani Muni. In His childhood He killed many asuras along with Sri Krishna.