Hope this info helps:
https://www.tatacommunications.com/sites/default/files/MOB-sponsored-data-exchange-ds-129506.pdf
https://www.tatacommunications.com/sites/default/files/MOB-mobile-data-exchange-ds-129565.pdf
https://www.tatacommunications.com/sites/default/files/SP-SDX-ds-104716.pdf
http://www.itwire.com/telecoms-and-...-extended,-revenue-share-increased-by-50.html