aath hi billion umr zamin ki hogi shayad aisa hi andaza hai kuchh science ka chaar eshaariya billion salon ki umr to bit chuki hai kitni der laga di tum ne aane mein aur ab mil kar kis duniya ki duniya-dari soch rahi ho kis mazhab aur zat aur pat ki fikr lagi hai aao chalen ab tin hi billion sal bache hain