Make an application of resignation to your Senior / Boss.
Sample
To: The Branch Manager
[Name of Company]
Sir / Madam
Subject : Letter for Resignation
I would like to resign from my job with immediate effect. I wish to pursue another opportunity as a POST.
I would be serving one month notice starting tomorrow and would like to be relieved of my responsibilities by Month & Day 2010. I would like to thank you for your support and insights that made my stint a great learning experience.
I would like to discuss the following when we meet:
* My pending bonus for the current financial year.
* Vacation time and its adjustment with the notice period.
* Other if any
I would like to recommend a few team members for my position and would be happy to train and support my replacement.
Please let me know of a convenient time to meet and discuss the same.
Yours sincerely,
[Your Name]
[Your Designation in the company]