A letter advising him to study regularly. Write a letter to your younger brother advising him to study regularly for a better future.
Dear X,
Accept my cordial love first. Hope every member of your family is quite well by the grace of Almighty Allah. I received my mother’s letter a few days ago. I have come to know that your progress in your studies is not satisfactory. Don’t you know student life is the seed time of the future? Why do you neglect your studies? If you do so, you will kill your future. You will not able to be pursue higher studies. You won’t get a good job either. Now, you are a student of the university. Its result is more important than any other of the classes. Please try to understand and read attentively to build a better future. I am older than you. You should follow my path. I had tried to succeed in life by all means. I was determined to pursue higher studies in Computer Science and Engineering (CSE). I have reached my goal. Why will you leave it behind? Through hard work and planned studying you will surely reach your goal. I expect to know from your next letter that you are studying regularly.
No more today. Convey my best regards to father and mother.
With best wishes to you.
Your elder brother.
Y