You are Manav, living in S. R. Boys Hostel, Bhopal. You will not be with your mother on her birthday. Write an e-mail to her, regretting your inability to be with her.
Date: 12th November 20XX
Sub: Inability to be at home on your birthday
I am sorry that I shall not be with you on your birthday. I am going to miss you all as it will be the first time of my missing it. I pray to God to give you a happy and long life. Please do enjoy your birthday and let me know how you enjoyed it. “Happy Birthday”.