Nagarjuna is very close to the title Manam. It was the last movie of his father legend Akkineni Nageshwara Rao.
He wants to keep that name alive for ever. So he launched this Manam enterprise for making movies on this banner.
Manam Enterprises solely belongs to Nagarjuna and his sons whereas Annapurna Studios revenues will be shared among other members of the Akkineni family.
Nagarjuna owned Great India Entertainments banner prior to switching completely to Annapurna Studios banner.
For some undisclosed reason, Nagarjuna stopped making movies on GIE and has stuck with Annapurna banner for many years.
But now he has started Manam Enterprises that has no connection with Annapurna Studios movies, which will entirely focus upon Chay and Akhil’s projects. Some others say it could be for Tax purpose.