Is there incremental deployment module for Drupal 7? I can find Deploy module for Drupal 7 that achieves full deployment. Also, I can find Incremental Deploy module for Drupal 6. Is there incremental deployment module for Drupal 7? or even work around that achieves incremental deployment for Drupal 7?
There is no Drupal 7 version of Incremental Deploy. In fact, the Drupal 6 version is no longer supported.

You have several options to duplicate the functionality. The closest match is probably Data Export Import -  https://www.drupal.org/project/data_export_import

Other options are the Migrate module - https://www.drupal.org/project/migrate or migrate_d2d - https://www.drupal.org/project/migrate_d2d

Modules for migrating specific content types are also available. For example, for taxonomies, Taxonomy CSV import/export - https://www.drupal.org/project/taxonomy_csv