ashuthinks

But at the time of edit when i clicked on edit button and update all values and submit that values it is updated perfectly in database but page is not able to redirect again to

You can remove this code from your controller , as you are doing operation same page so no need to redirect this. Anyways at last you are returning to view with updated data so jus remove this code from your controller,

return RedirectToAction("Index");

LEt me know if still you are facing any issue.