While the boards of three companies of the Rs 33,000 crore Aditya Birla Group — Indian Rayon, Indo Gulf Fertilisers and Birla Global Finance — meet on Sunday to discuss ‘restructuring proposals’, speculation is rife that there could be two possibilities.First, Birla Global Finance and Indo Gulf Fertilisers may be merged with Indian Rayon, the Group’s holding company for many businesses, to create a single company. Second, all finance businesses (including insurance and mutual funds) may be brought under a single entity.