yagna of sagara

Another story prevailed regarding Ganga .Once upon a time king Sagara ruled Ayodhya.He was a righteous man.He had two wives-Kesini  and Sumathi.Elder wife Kesini was righteous and younger wife Sumathi was beautiful.They did not have children.Along with his wives he went to bhruguprasravanam in Himalayas and did penance.Bhrugu maharshi blessed him with children. he told that one son who can procreate  would be born to kesini and Sumathi would have 60000 children without procreating ability. Both were happy and Kesini gave birth to Asamanjudu. Sumathi gave birth to 60000 children who were developed in ghee bowls till they grew up . Asamanjudu had a very bad habit.He used to dip peoples children in Sarayu river and enjoying thier plight.people went sagara and explaned the atrocities od Asamanjudu. Sagara shunned asamanjudu from the country. After some time ,Sagara wanted to do yagna.Asamanjas son was Amsumanthudu.He was very efficient.Plateau between Himalayas and Vindhya mountains was the right place to start the yagna.Amsumantha accompanied Sasgara in conducting Aswamedha yaga.indra came like a demon and stole the yagna aswam.Ruthvijas told Sagara that if yagnaswam was not brought back ,bad would happen.so,Sagara sent his 60000 sons in search of the horse.