Imagine you are pranjal. You are going for a tennis match, after which you will go to your friend's house. Your mother is not at home. So, you write a message for her, informing her about your programme. Write message in about 30-40 words.
You can write '' Mom I have my tennis match, you know that, don't you? And after that my friend has invited me at his/her home. If I will be late, then call me, I am taking my mobile or you can massage me. No need to worry about me.'' this is the message that you can write to your mom.