hii gopi

its big joke getting free seat in GITAM as its private university money making will be main internsion . but i can say you with your marks there will not be donation taken but they will surely charge the tution fee of 2.20 lakh per anum if join with GAT. 

personaly i m a GITAMite in bangalore campus and i suggest you not take join in bangalore campus along with your score is really good you can any core branch

all the best:)