In 2014, Uma S. Krishnan completed her PhD research in "A Cross-Cultural Study of the Literacy Practices of The Dabbawalas: Towards a New Understanding of Non-mainstream Literacy and its Impact on Successful Business Practices."
В 2014 году доктор философии государственного университета Кента Ума Кришнан опубликовал своё исследование «A Cross-Cultural Study of the Literacy Practices of The Dabbawalas: Towards a New Understanding of Non-mainstream Literacy and its Impact on Successful Business Practices».