i hav error in this store procedure

Question

store procedure

ALTER procedure [dbo].[vin]

(@namee varchar(10),@age int,@gender varchar(20))

as

begin

insert into karthi values (@namee,@age,@gender)

select * from karthi

end

coding

using System;

using System.Collections;

using System.Configuration;

using System.Data;

using System.Linq;

using System.Web;

using System.Web.Security;

using System.Web.UI;

using System.Web.UI.HtmlControls;

using System.Web.UI.WebControls;

using System.Web.UI.WebControls.WebParts;

using System.Xml.Linq;

public partial class streprocedure : System.Web.UI.Page

{

    Class1 cds = new Class1();

    string ae = "";

    string gender = "";

    protected void Page_Load(object sender, EventArgs e)

    {

        age();

        

    }

    private void age()

    {

        ListItem li = new ListItem();

        li.Text = "Select";

        li.Value = "0";

        DropDownList1.Items.Add(li.ToString());

        for (int i = 0; i <= 100; i++)

        {

            DropDownList1.Items.Add(Convert.ToString(i));

        }

    

    

    }

    private void fem()

    {

        if (RadioButton1.Checked)

        {

            gender = "Male";

        }

        else

        {

            gender = "Female";

        }

    }

    protected void Button1_Click(object sender, EventArgs e)

    {

        age();

        fem();

        string qry = "exec vin '" + TextBox1.Text;

        qry += "','" + DropDownList1.SelectedItem.ToString();

        qry += "','" + gender;

        qry += "'";

        cds.insert(qry);

        Label4.Text = "Sucess";

    }

}

it throw the error

System.Data.SqlClient.SqlException: Invalid object name 'karthi'.