How to download image programmatically from remote location using c#

Use this code to download image from remote location using c#

MemoryStream stream = new MemoryStream();
byte[] imagetoUpload;
string imageName = string.Empty;
string imgUrl = string.Empty;
System.Net.WebClient wc = new System.Net.WebClient();
imgUrl = "http://www.google.co.in/logos/boombah_chamki-hp.gif ";
imagetoUpload = wc.DownloadData(imgUrl);
imageName = imgUrl.Substring(imgUrl.LastIndexOf("/") + 1);
stream.Write(imagetoUpload, 0, imagetoUpload.Length);
Bitmap bmp = new Bitmap(stream);
bmp.Save(@"D:\" + imageName);

Namespace required:

using System.IO;

using System.Drawing;

Thanks,
Abhay