Dear Mam,
My name is ABC XYZ. I have recently given exams of my last semester of M.SC IT and awaiting result for same. I have seen your advertisement regarding help with household chores in the newspaper and writing this letter to express my interest in taking up the job.
At the onset, I have good culinary skills and I can make delicious American and Indian cuisines. Therefore, I can prepare food for you on daily basis. Apart from this, I have good knowledge about growing vegetables and plants. Thus, I can maintain your yard as well as kitchen garden.
As I mentioned earlier, I am waiting for my result to come. Until the verdict is out, I intent to do some part time job. As I have competency to do this work, hence I decided to apply for this task. Apart from it, I stay in close proximity of your home. Owing to which, I would not have to go through the hustle of travelling. Therefore, I am inclined to apply for this posting.
Also, I want to inform you about my availability. I can come regularly for three hours except Sundays. I can extend on occasional basis in case you want me to stay a little longer. I can lend hand to do other errands too if required.
I will look forward to hearing from you.
Yours Sincerely,
[YOUR-NAME]