Hi abhi619,
Using the below two article i have created the example.
SQL
CREATE PROCEDURE [dbo].[GetCustomersPageWise]
	  @SearchTerm VARCHAR(100) = ''
      ,@PageIndex INT = 1
      ,@PageSize INT = 10
      ,@RecordCount INT OUTPUT
AS
BEGIN
      SET NOCOUNT ON;
      SELECT ROW_NUMBER() OVER
      (
            ORDER BY [CustomerID] ASC
      )AS RowNumber
             ,[CustomerID]
             ,[CompanyName]
             ,[ContactName]
             ,[ContactTitle]
             ,[Address]
             ,[City]
             ,[Region]
             ,[PostalCode]
             ,[Country]
             ,[Phone]
             ,[Fax]
      INTO #Results
      FROM [Customers]
	  WHERE [ContactName] LIKE @SearchTerm + '%' OR @SearchTerm = ''
   
      SELECT @RecordCount = COUNT(*)
      FROM #Results
         
      SELECT *
      FROM #Results
      WHERE RowNumber BETWEEN(@PageIndex -1) * @PageSize + 1 AND(((@PageIndex -1) * @PageSize + 1) + @PageSize) - 1
   
      DROP TABLE #Results
END
Model
public class CustomerModel
{
    public List<Customer> Customers { get; set; }
    public string SearchTerm { get; set; }
    public int PageIndex { get; set; }
    public int PageSize { get; set; }
    public int RecordCount { get; set; }
}
Controller
public class HomeController : Controller
{
    // GET: Home
    public ActionResult Index()
    {
        List<Customer> dummy = new List<Customer>();
        dummy.Add(new Customer());
        return View(dummy);
    }
    [HttpPost]
    public JsonResult AjaxMethod(int pageIndex, string searchTerm)
    {
        NorthwindEntities entities = new NorthwindEntities();
        CustomerModel model = new CustomerModel();
        model.SearchTerm = searchTerm;
        model.PageIndex = pageIndex;
        model.PageSize = 10;
        ObjectParameter recordCount = new ObjectParameter("RecordCount", typeof(int));
        model.Customers = entities.GetCustomers(model.SearchTerm, model.PageIndex, model.PageSize, recordCount).ToList();
        model.RecordCount = Convert.ToInt32(recordCount.Value);
        return Json(model);
    }
}
View
@model List<Customer>
@{
    Layout = null;
    WebGrid webGrid = new WebGrid(source: Model, canSort: false, canPage: false);
}
<!DOCTYPE html>
<html>
<head>
    <meta name="viewport" content="width=device-width" />
    <title>Index</title>
    <style type="text/css">
        body {
            font-family: Arial;
            font-size: 10pt;
        }
        table {
            border: 1px solid #ccc;
            border-collapse: collapse;
            background-color: #fff;
        }
            table th {
                background-color: #B8DBFD;
                color: #333;
                font-weight: bold;
            }
            table th, table td {
                padding: 5px;
                border: 1px solid #ccc;
            }
            table, table table td {
                border: 0px solid #ccc;
            }
        .Pager span {
            text-align: center;
            color: #333;
            display: inline-block;
            width: 20px;
            background-color: #B8DBFD;
            margin-right: 3px;
            line-height: 150%;
            border: 1px solid #B8DBFD;
        }
        .Pager a {
            text-align: center;
            display: inline-block;
            width: 20px;
            background-color: #ccc;
            color: #333;
            border: 1px solid #ccc;
            margin-right: 3px;
            line-height: 150%;
            text-decoration: none;
        }
    </style>
</head>
<body>
    <h4>Customers</h4>
    <hr />
    <input type="text" id="txtSearch" />
    <br /><br />
    @webGrid.GetHtml(
        htmlAttributes: new { @id = "WebGrid", @class = "Grid" },
        columns: webGrid.Columns(
                 webGrid.Column("CustomerID", "CustomerID"),
                 webGrid.Column("ContactName", "ContactName"),
                 webGrid.Column("City", "City"),
                 webGrid.Column("Country", "Country")))
    <br />
    <div class="Pager"></div>
    <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js"></script>
    <script src="~/Scripts/ASPSnippets_Pager.min.js"></script>
    <script type="text/javascript">
        $(function () {
            GetCustomers(1, $('#txtSearch').val().trim());
        });
        $("body").on("click", ".Pager .page", function () {
            GetCustomers(parseInt($(this).attr('page')), $('#txtSearch').val().trim());
        });
        $("[id*=txtSearch]").live("keyup", function () {
            GetCustomers(parseInt(1), $('#txtSearch').val().trim());
        });
        function GetCustomers(pageIndex, searchTerm) {
            $.ajax({
                type: "POST",
                url: "/Home/AjaxMethod",
                data: '{pageIndex: ' + pageIndex + ', searchTerm: "' + searchTerm + '"}',
                contentType: "application/json; charset=utf-8",
                dataType: "json",
                success: OnSuccess,
                failure: function (response) {
                    alert(response.d);
                },
                error: function (response) {
                    alert(response.d);
                }
            });
        };
        function OnSuccess(response) {
            var model = response;
            var row = $("#WebGrid tbody tr:last-child").clone(true);
            $("#WebGrid tbody tr").remove();
            $.each(model.Customers, function () {
                var customer = this;
                $("td", row).eq(0).html(customer.CustomerID);
                $("td", row).eq(1).html(customer.ContactName);
                $("td", row).eq(2).html(customer.City);
                $("td", row).eq(3).html(customer.Country);
                $("#WebGrid").append(row);
                row = $("#WebGrid tbody tr:last-child").clone(true);
            });
            $(".Pager").ASPSnippets_Pager({
                ActiveCssClass: "current",
                PagerCssClass: "pager",
                PageIndex: model.PageIndex,
                PageSize: model.PageSize,
                RecordCount: model.RecordCount
            });
        };
    </script>
</body>
</html>