With reference to your job ad listed at (name source of information) on (state date), I would like to apply for the post of (state name of post) in your company (state name of company).
Currently, I am working as (state current designation) at (state current company’s name) since the past four years. Your company is a leader in the field of (state topic or field) and it will give immense pleasure if you give me a chance to meet you and show you my abilities.
I am also sending my resume where you will find all the other details about my qualifications and professional achievements. I can be reached at (state phone number) or you can e-mail me at (state e-mail id).
I hope to hear from you soon to discuss this opportunity to work with you and your company.