Auto search category module is the override module to display category path in auto suggested auto search for module. This module simplifies the search product of particular category and the products belonging to that category. For example: if Apparel keyword is clicked in search, than it will show all the subcategories of apparel like
Apparel > shirt
Apparel > shoes > men
Apparel > pants
Display search based sub categories in the drop down, which gives the most relevant search result of your store. Customer can easily navigate to the desired sub category.