Some changes in the body of letter:
It was unbelievable for me to accept the unfortunate accident of you. I had not even thought that this will happen. After talking to auntie, I came to know about this accident. She told that you were cycling and a car bumped you from the backside. I know that he was leaning to drive a car. But skip it, this has happened and it can't be changed. Oh! sorry I forgot to talk about your health. Auntie told that the bone of your hand is cracked because of the weight of your body and cycle. I hope that you will be fine in a few days and can attend the school. Don't worry about school, I will help you to recover studies. The only thing I pray for you that 'get well soon'. OK, we will talk later. And once again get well soon and recover yourself.