Hello Asad,
I am writing in regards to the data entry job that you have posted. I am excited about this opportunity as it seems like a perfect match for my skills.
In particular, I have a strong attention to detail and I am very efficient in data entry. I have worked with a variety of software programs and I am confident that I can learn any new system quickly. I am also very reliable and punctual.
I believe that I would be a valuable asset to your team. I am eager to put my skills to work and contribute to the success of your company. I am available to start work immediately and I am looking forward to hearing from you.
Thank you for your time,
Asad