Pathauto Module

• The Pathauto Module creates custom URL aliases based on configurable rules.

Global Redirect Module

• The Global Redirect Module automatically redirects Drupal's internal URLs (e.g., http://example.com/node/123) to their URL aliases.

Page Title Module

• The Page Title Module allows you to create cusom <title> elements for each node (page) of content.

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Courtesy : http://drupaltutorials.com