I need a letter to inform the post office about my new company establishment.

Hi, MANI_s!

I just moved your question out of Introductions to this forum topic area. Introductions is where people introduce themselves only, and we try to not ask any questions there.

Concerning you question - I'm sure that you know more about your business than anyone else here. My suggestion would be for you to consider posting a draft of such a letter here, without putting any contact information in it, so that we can advise you as to how you might make improvements to it. If you do that, you'll get the best help here.

Via clicking on the following links, you'll find samples of ways that you might draft such a letter that you might then tailor to meet your needs.

Sample Business Letters and Forms

Free Sample Sales Letter: Example of How to Write a Persuasive Business Marketing Letter

Introducing a sample introduction letter template tool to assist leaders.

Letter Samples - Free Letter Templates - Personal and Business Letter

Sample Business Letters and Forms

Idea Cafe Small Business Archive: "Company introduction letter"

Business introduction letter... Here's a sample business introduction letter.

Mid-career Job Offer Letter Sample: Introduction and Sample Mid-career Job Offer

Introduction Letters

Sample business letters by Quazell

Thanks!