Adding Taxonomy Field to Content Type

    
            SPWeb web = SPContext.Current.Web;
            SPContentTypeId cId = new SPContentTypeId("0x0100AF98B284ECB44322916F1A1AD1A9E31C");
            SPContentType cType = new SPContentType(cId, web.ContentTypes, "MurugesanCType");
            web.ContentTypes.Add(cType);
            Guid termSetId;
            TaxonomySession session = new TaxonomySession(SPContext.Current.Site);
            TermStore store = session.TermStores[0];
            Group group = store.Groups[1];
            TermSetCollection tCols = group.TermSets;
            foreach (TermSet set in tCols)
            {
              if(set.Name.ToString().Equals("Role"))
              {
                 termSetId = set.Id;
                 TaxonomyField tField = web.Fields.CreateNewField("TaxonomyFieldType", "Profile Role") as TaxonomyField;
                 tField.SspId = set.TermStore.Id;
                  tField.TermSetId = termSetId;
                  tField.TargetTemplate=string.Empty;
                  tField.AllowMultipleValues=false;
                  tField.CreateValuesInEditForm=true;
                  tField.Open=true;
                  tField.AnchorId=Guid.Empty;
                  tField.Group = "Meta Data - Custom";
                  web.Fields.Add(tField);
                  SPField spField = web.Fields["Profile Role"];
                  web.ContentTypes[cId].FieldLinks.Add(new SPFieldLink(spField));
                  web.ContentTypes[cId].Update();
                
              }
            }
            Web.Update();