 In 1980 , Ray made a sequel to Goopy <unk> Bagha Byne , a somewhat political <unk> <unk> <unk> ( Kingdom of Diamonds ) . The kingdom of the evil Diamond King , or <unk> Raj , is an allusion to India during Indira Gandhi 's emergency period . Along with his acclaimed short film <unk> ( <unk> 's Diary ) and hour @-@ long Hindi film , <unk> , this was the culmination of his work in this period . 
