diff --git a/src/app/app-modules/nurse-doctor/case-sheet/general-case-sheet/doctor-diagnosis-case-sheet/doctor-diagnosis-case-sheet.component.ts b/src/app/app-modules/nurse-doctor/case-sheet/general-case-sheet/doctor-diagnosis-case-sheet/doctor-diagnosis-case-sheet.component.ts
index c0786a6..6a5bfc1 100644
--- a/src/app/app-modules/nurse-doctor/case-sheet/general-case-sheet/doctor-diagnosis-case-sheet/doctor-diagnosis-case-sheet.component.ts
+++ b/src/app/app-modules/nurse-doctor/case-sheet/general-case-sheet/doctor-diagnosis-case-sheet/doctor-diagnosis-case-sheet.component.ts
@@ -29,6 +29,7 @@ import { RegistrarService } from 'src/app/app-modules/registrar/shared/services/
 import { NurseService, MasterdataService } from '../../../shared/services';
 import * as moment from 'moment';
 import { SessionStorageService } from 'Common-UI/src/registrar/services/session-storage.service';
+import { map, Observable } from 'rxjs';
 
 @Component({
   selector: 'app-doctor-diagnosis-case-sheet',
@@ -100,6 +101,7 @@ export class DoctorDiagnosisCaseSheetComponent
   serviceList = '';
   referralReasonList = '';
   isCovidVaccinationStatusVisible = false;
+  userName: any;
 
   constructor(
     private doctorService: DoctorService,
@@ -122,6 +124,7 @@ export class DoctorDiagnosisCaseSheetComponent
   ngDoCheck() {
     this.assignSelectedLanguage();
   }
+  
   assignSelectedLanguage() {
     const getLanguageJson = new SetLanguageComponent(this.httpServiceService);
     getLanguageJson.setLanguage();
@@ -129,6 +132,7 @@ export class DoctorDiagnosisCaseSheetComponent
   }
 
   ngOnChanges() {
+
     this.ncdScreeningCondition = null;
     if (this.casesheetData) {
       console.log('cases');
@@ -137,6 +141,7 @@ export class DoctorDiagnosisCaseSheetComponent
       if (this.casesheetData.doctorData.diagnosis.doctorDiagnonsis) {
         this.doctorDiagnosis =
           this.casesheetData.doctorData.diagnosis.doctorDiagnonsis;
+        this.userName = this.casesheetData?.doctorData?.diagnosis?.createdBy;
         this.diagnosisFlag = true;
       }
       if (temp2 !== undefined) {
@@ -379,22 +384,28 @@ export class DoctorDiagnosisCaseSheetComponent
     const len = String(10).length - String(this).length + 1;
     return len > 0 ? new Array(len).join('0') + this : this;
   }
-  downloadSign() {
-    if (this.beneficiaryDetails && this.beneficiaryDetails.tCSpecialistUserID) {
-      const tCSpecialistUserID = this.beneficiaryDetails.tCSpecialistUserID;
-      this.doctorService.downloadSign(tCSpecialistUserID).subscribe(
-        (response) => {
+ 
+   downloadSign() {
+    this.getUserId().subscribe((userId) => {
+      const userIdToUse = this.beneficiaryDetails?.tCSpecialistUserID ?? userId;
+      this.doctorService.downloadSign(userIdToUse).subscribe(
+        (response: any) => {
           const blob = new Blob([response], { type: response.type });
           this.showSign(blob);
         },
-        (err) => {
-          console.log('error');
+        (err: any) => {
+          console.error('Error downloading signature:', err);
         },
       );
-    } else {
-      console.log('No tCSpecialistUserID found');
-    }
+    });
   }
+
+  getUserId(): Observable<any> {
+    return this.doctorService
+      .getUserId(this.userName)
+      .pipe(map((res: any) => res?.userId || null));
+  }
+
   showSign(blob: any) {
     const reader = new FileReader();
     reader.readAsDataURL(blob);
diff --git a/src/app/app-modules/nurse-doctor/shared/services/doctor.service.ts b/src/app/app-modules/nurse-doctor/shared/services/doctor.service.ts
index fd44873..5515826 100644
--- a/src/app/app-modules/nurse-doctor/shared/services/doctor.service.ts
+++ b/src/app/app-modules/nurse-doctor/shared/services/doctor.service.ts
@@ -2847,6 +2847,12 @@ export class DoctorService {
       .get(environment.downloadSignUrl + userID, { responseType: 'blob' })
       .pipe(map((res: any) => <Blob>res.blob()));
   }
+
+  /* Get UserID using UserName */
+  getUserId(userName: any) {
+    return this.http.get(environment.getUserId + userName);
+  }
+
   getIDRSDetails(beneficiaryID: string, visitID: string): Observable<any> {
     const visitCategory = this.sessionstorage.getItem('visitCategory');
     const otherDetails = Object.assign({
diff --git a/src/environments/environment.ci.ts.template b/src/environments/environment.ci.ts.template
index 3f1c0f4..c95764b 100644
--- a/src/environments/environment.ci.ts.template
+++ b/src/environments/environment.ci.ts.template
@@ -495,4 +495,6 @@ export const environment = {
   siteKey: siteKey,
   captchaChallengeURL: captchaChallengeURL,
   enableCaptcha: enableCaptcha,
+
+  getUserId: `${COMMON_API}user/userName/`,
 };