You are using an outdated browser. Please upgrade your browser to improve your experience and security. Upon completion of the transaction, Marathon's stake in the development will increase from 40% to 100%, giving it full ownership and control of the project at Byculla in Mumbai. Marathon Nextgen Realty Ltd will acquire Adani Group's 60 per cent stake in a mixed use project in Mumbai for Rs 335 crore, taking full control of.