public ActionResult Scheme()
{
ButtonVisiblity("Index");
var model = new SchemeViewModel();
ViewBag.PurityList = new SelectList(_schemeService.GetPurityMasterList(), "Id", "PurityName");
ViewBag.ProductList = new SelectList(_schemeService.GetProductList(), "Id", "Name");
model.SchemeId = _schemeService.GetMaxPkNo();
Session["EffectiveROI"] = null;
return(View(model));
}