Explain the given paragraph how yudhvansh decline in hindi......

iske liye hame mahabharat ke asli ansh ko janana hoga...


darsal aapsi foot ye hui...ki krishna ke bete samb ne unke rajya me aaye rishiyon ka majak udaya...jab we ek yajna kar rhe the...to rishiyo ne use shrap diya ki isme se wo astra niklega jisse tumare vansh ka naash ho jayega...

aur aaj jo ham yadav dekhte hai...wo asli yaduvanshi nahi hain...yaduvanshi nagon ke asuron ke...vanshaj the....

thanks