How to publish application in Android market ?

Uploading applications
Once you've registered, it's easy to upload your application to Android Market. From the home screen of the Developer Console, select "Upload Applications." You'll be asked to fill in the following information for your app:

Upload Assets
APK file size: Maximum supported size is 50MB.

Draft application .apk file: When you upload an .apk file, it can be saved as a draft while you edit the other aspects of the list.
Please note that package names for app files are unique and permanent, so please choose wisely. Package names cannot be deleted or re-used in the future.

Screenshots: 2 screenshots are required. The additional 6 are optional.
High-Resolution Application Icon: Required.

Promotional Graphic: Optional.

Feature Graphic: Optional.

Promotional Video: Optional.
Learn more about Graphic Assets including our recommended guidelines. http://www.google.com/support/androidmarket/developer/bin/answer.py?answer=1078870

Listing Details

Language: This is to denote the language of your application. Default language is US English. More languages will become available as Android-powered devices become available in those languages.

Title: The name of your application as you would like it to appear in Android Market. You may add one per language.

Description: The visible description of your application in Android Market. Use the translate feature to translate your description into other languages. There is a 4000 character limit for this field.

Note: Repetitive and/or irrelevant use of keywords in the app title, description or promotional description creates a spammy user experience and can result in an app suspension. Please refer to full guidelines in the Android Market Developer Program Policies
Recent changes: The recent changes feature provides an opportunity for you to add notes about the changes specific to the newest version of your application. Use the recent changes field to inform your users about the changes in your application.Learn more about recent changes.

Promo text: Text that accompanies your promotional graphic in featured spots in Android Market
Application Type: Android Market is divided into 2 major application types: "Applications" and "Games." Please choose one.

Category: You must select a category for your application. Read more about categories.
Publishing options

Copy protection: Copy protection may help prevent applications from being copied from a device. It increases the amount of memory on the phone required to install the application. We expect to deprecate copy protection soon.
If you have a paid application, we recommend that you implement the Android Market licensing service. For free application, we recommend implementing your own copy protection scheme.

Locations: These are the locations in which you may distribute your applications.
Not all locations listed currently have users with Android-powered devices.
You may select locations one-by-one or choose the "All current and future locations" option. This option means that, as we add more distribution locations, these locations will be enabled for your app. Before you check this option, please brush up on Export Compliance.

Note: At this time, you may only sell applications to users in these locations.

Contact information
You must pick one support channel for your app: Website, Email, or Phone
This information is viewable to users from Android Market

You may choose to offer multiple channels for support

Extra Information
1. Youtube link : http://www.youtube.com/watch?v=ou8yJvI8HCE&feature=related