The US Library of Congress and the American Library Association transcription scheme for Hindi can be found documented on the corresponding ALA-LC romanization page. The transliteration of Hindi in fact is fairly close to its pronunciation, so there is not a pressing need for a separate transcription system of the sounds of Hindi. Typically transcription will in fact simply be a simplification of the transliterated form which eliminates diacritic marks by removing the macron indicating long vowels, or converts ś into “sh,” and so forth.