Just share in bangla language.

Download USB Universal Installer Software: https://www.google.com.bd/url?sa=t&rct=j&q=&esrc=s&source=web&cd=4&cad=rja&uact=8&ved=0CDMQFjADahUKEwj31Kn82YnHAhXOco4KHVliCc0&url=https%3A%2F%2Fdocs.google.com%2Ffile%2Fd%2F0B74jNfA_FUEwb2NBUUs2WmNkNFU%2Fedit%3Fusp%3Dsharing&ei=hq-9Vff5D87luQTZxKXoDA&usg=AFQjCNHq787tVibkclCmb1nEvri6qSBLVg&sig2=27vnAZue7LyMivRccx4cCA

Download Ubuntu ISO file: http://www.ubuntu.com/download/desktop/thank-you/?version=14.04.2&architecture=i386

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