Help 12 Year Old Madhvik Get Bone Marrow Transplant

My son of 12 years is suffering from Beta Thalassemia Major and H.I.V. Thalassemia Major is since birth and approx. 230 blood bottles are transfused. He is HIV positive since november-2008 by blood transfusion in Civil Hospital, Junagadh. I have already spent lots of money on his different laboratory test, medicines and treatments till date.
   As suggested by doctor bone marrow ( Stem Cell) Transplant is necessary to cure Thalassemia Major. Tata Medical Center, 14 Major Arterial Road (EW), New Town, Rajarhat, Kolkata has given an approximate expenditure Rs. 25,00,000/- (Twenty Five Lacs) towards his  Beta Thalassemia Major treatment.
I am not able to afford this amount. I request you to support financially to save his life and better future.