Hello Nitish,
You can use filters to retrieve specific data items from Work Queue.
You can provide two types of filters Key filter and tag filter.
Key filter takes item key as a input value tag filter take the tag(Text you given as input to tag action) you have given to specific item.
To Understand this you can download process Example template available on portal in this template check Working with queues process after importing template.
here is a link https://portal.blueprism.com/resources/templates
