diff --git a/.env.sample b/.env.sample
index bee163529..ab264988d 100644
--- a/.env.sample
+++ b/.env.sample
@@ -150,4 +150,6 @@ KEYCLOAK_REALM=xxxxxxx
 
 ENABLE_CORS_IP_LIST="" # Provide a list of domains that are allowed to use this server
 SCHEMA_FILE_SERVER_URL= // Please provide schema URL 
-SCHEMA_FILE_SERVER_TOKEN=xxxxxxxx // Please provide schema file server token for polygon
\ No newline at end of file
+SCHEMA_FILE_SERVER_TOKEN=xxxxxxxx // Please provide schema file server token for polygon
+
+FILEUPLOAD_CACHE_TTL= //Provide file upload cache ttl
\ No newline at end of file
diff --git a/apps/api-gateway/src/issuance/issuance.controller.ts b/apps/api-gateway/src/issuance/issuance.controller.ts
index f5d80615e..f15c50157 100644
--- a/apps/api-gateway/src/issuance/issuance.controller.ts
+++ b/apps/api-gateway/src/issuance/issuance.controller.ts
@@ -400,7 +400,9 @@ async downloadBulkIssuanceCSVTemplate(
     },
     required: true
   })
-  @UseInterceptors(FileInterceptor('file'))
+  @UseInterceptors(FileInterceptor('file', {
+    limits: { fieldSize: 100 * 1024 * 1024 } 
+  })) 
 
   async issueBulkCredentials(
     @Body() clientDetails: ClientDetails,
diff --git a/apps/issuance/src/issuance.service.ts b/apps/issuance/src/issuance.service.ts
index 39758c244..80032547d 100644
--- a/apps/issuance/src/issuance.service.ts
+++ b/apps/issuance/src/issuance.service.ts
@@ -1173,9 +1173,10 @@ async sendEmailForCredentialOffer(sendEmailCredentialOffer: SendEmailCredentialO
       credentialPayload.fileName = fileName;
       const newCacheKey = uuidv4();
 
-      await this.cacheManager.set(requestId ? requestId : newCacheKey, JSON.stringify(credentialPayload), 60000);
-     
-return newCacheKey;
+      const cacheTTL = Number(process.env.FILEUPLOAD_CACHE_TTL) || 60000; 
+      await this.cacheManager.set(requestId || newCacheKey, JSON.stringify(credentialPayload), cacheTTL);
+
+      return newCacheKey;
 
 } catch (error) {
       this.logger.error(`error in validating credentials : ${error.response}`);