Aditya Birla group is thinking of huge expansions in a difficult time. Maverick leader Kumar Mangalam Birla is hoping to raise a whopping Rs 5000 crore (a billion dollars), for various group company projects. Also, the Birla group companies themselves-Grasim, Hindalco Nuvo and Essel Mining, will raise these funds. After many in India Inc did it recently, now is the turn of Kumar Birla to unleash a debt fund raising exercise to fund its expansions.