Help Ahnaf for his little heart

My daughter had an open heart surgery in jaypee hospital and the child next to her bed in ICU has vsd and ASO and have a pacemaker in his heart and his name is Ahnaf Rashid and is 3.5 months old and is from bangladesh. He is here for the treatment. Drs told that the total operation will cost 4.9 lacs which they have already paid and then they said the pacemaker will cost 1 lacs more which we helped them but now the drs need 3.7 lacs more for his treatment but the parents doesn't have this much of amount for his treatment so kindly help them as much as you can.