 There are various Romanisation systems used for Bengali created in recent years which have failed to represent the true Bengali phonetic sound.The Bengali alphabet has often been included with the group of Brahmic scripts for romanisation where the true phonetic value of Bengali is never represented.Some of them are the International Alphabet of Sanskrit Transliteration or IAST system (based on diacritics), "Indian languages Transliteration" or ITRANS (uses upper case letters suited for ASCII keyboards), and the National Library at Kolkata romanisation.