Send Id .cshtml to .cs page

Question

Hello this is my code

@foreach (var category in Model)

{

<li id="@category.CategoryId"><a href="/blog/category/@category.UrlSlug">@category.Title</a></li>

}

Display Categories with data in blog page .How to send categories id when click particular catgeories .cshtml page to .cs page

it's very argent please send solution.