diff --git a/controller/app/controllers/otp/validator/OtpRequestValidator.java b/controller/app/controllers/otp/validator/OtpRequestValidator.java
index d83ac01e31..33637a5962 100644
--- a/controller/app/controllers/otp/validator/OtpRequestValidator.java
+++ b/controller/app/controllers/otp/validator/OtpRequestValidator.java
@@ -1,10 +1,6 @@
 package controllers.otp.validator;
 
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.List;
-import java.util.Map;
-import org.apache.commons.lang.StringUtils;
+import org.apache.commons.lang3.StringUtils;
 import org.sunbird.exception.ProjectCommonException;
 import org.sunbird.exception.ResponseCode;
 import org.sunbird.exception.ResponseMessage;
@@ -14,6 +10,11 @@
 import org.sunbird.util.StringFormatter;
 import org.sunbird.validator.BaseRequestValidator;
 
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+import java.util.Map;
+
 public class OtpRequestValidator extends BaseRequestValidator {
 
   private final List<String> allowedTemplate =
diff --git a/controller/pom.xml b/controller/pom.xml
index 5ae07fd0bf..07e46610f1 100644
--- a/controller/pom.xml
+++ b/controller/pom.xml
@@ -237,7 +237,13 @@
           <groupId>ch.qos.logback.contrib</groupId>
           <artifactId>logback-json-classic</artifactId>
           <version>0.1.5</version>
-        </dependency>
+			<exclusions>
+				<exclusion>
+					<groupId>ch.qos.logback</groupId>
+					<artifactId>logback-classic</artifactId>
+				</exclusion>
+			</exclusions>
+		</dependency>
         <dependency>
           <groupId>net.logstash.logback</groupId>
           <artifactId>logstash-logback-encoder</artifactId>
diff --git a/core/platform-common/src/main/java/org/sunbird/validator/BaseRequestValidator.java b/core/platform-common/src/main/java/org/sunbird/validator/BaseRequestValidator.java
index 10f384ab45..fef7e2cbf1 100644
--- a/core/platform-common/src/main/java/org/sunbird/validator/BaseRequestValidator.java
+++ b/core/platform-common/src/main/java/org/sunbird/validator/BaseRequestValidator.java
@@ -1,13 +1,8 @@
 package org.sunbird.validator;
 
-import java.text.MessageFormat;
-import java.util.Arrays;
-import java.util.List;
-import java.util.Map;
-
 import com.typesafe.config.ConfigFactory;
 import org.apache.commons.collections.MapUtils;
-import org.apache.commons.lang.StringUtils;
+import org.apache.commons.lang3.StringUtils;
 import org.sunbird.exception.ProjectCommonException;
 import org.sunbird.exception.ResponseCode;
 import org.sunbird.keys.JsonKey;
@@ -15,6 +10,11 @@
 import org.sunbird.util.ProjectUtil;
 import org.sunbird.util.StringFormatter;
 
+import java.text.MessageFormat;
+import java.util.Arrays;
+import java.util.List;
+import java.util.Map;
+
 /**
  * Base request validator class to house common validation methods.
  *
diff --git a/core/platform-common/src/main/java/org/sunbird/validator/EmailValidator.java b/core/platform-common/src/main/java/org/sunbird/validator/EmailValidator.java
index e90a794240..3d9d83b694 100644
--- a/core/platform-common/src/main/java/org/sunbird/validator/EmailValidator.java
+++ b/core/platform-common/src/main/java/org/sunbird/validator/EmailValidator.java
@@ -1,8 +1,9 @@
 package org.sunbird.validator;
 
+import org.apache.commons.lang3.StringUtils;
+
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
-import org.apache.commons.lang.StringUtils;
 
 /**
  * Helper class for validating email.
diff --git a/service/src/main/java/org/sunbird/actor/bulkupload/BaseBulkUploadActor.java b/service/src/main/java/org/sunbird/actor/bulkupload/BaseBulkUploadActor.java
index ec95700380..67c7c688a3 100644
--- a/service/src/main/java/org/sunbird/actor/bulkupload/BaseBulkUploadActor.java
+++ b/service/src/main/java/org/sunbird/actor/bulkupload/BaseBulkUploadActor.java
@@ -4,16 +4,9 @@
 import com.fasterxml.jackson.databind.ObjectMapper;
 import com.opencsv.CSVReader;
 import com.opencsv.CSVReaderBuilder;
-import java.io.ByteArrayInputStream;
-import java.io.IOException;
-import java.io.InputStreamReader;
-import java.io.UnsupportedEncodingException;
-import java.nio.charset.StandardCharsets;
-import java.sql.Timestamp;
-import java.util.*;
 import org.apache.commons.collections.MapUtils;
 import org.apache.commons.io.IOUtils;
-import org.apache.commons.lang.ArrayUtils;
+import org.apache.commons.lang3.ArrayUtils;
 import org.sunbird.actor.core.BaseActor;
 import org.sunbird.dao.bulkupload.BulkUploadProcessDao;
 import org.sunbird.dao.bulkupload.BulkUploadProcessTaskDao;
@@ -31,6 +24,14 @@
 import org.sunbird.service.user.impl.UserServiceImpl;
 import org.sunbird.util.ProjectUtil;
 
+import java.io.ByteArrayInputStream;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.io.UnsupportedEncodingException;
+import java.nio.charset.StandardCharsets;
+import java.sql.Timestamp;
+import java.util.*;
+
 /**
  * Actor contains the common functionality for bulk upload.
  *
diff --git a/service/src/main/java/org/sunbird/actor/notification/EmailServiceActor.java b/service/src/main/java/org/sunbird/actor/notification/EmailServiceActor.java
index 6f7b1b92ae..3100b4ff87 100644
--- a/service/src/main/java/org/sunbird/actor/notification/EmailServiceActor.java
+++ b/service/src/main/java/org/sunbird/actor/notification/EmailServiceActor.java
@@ -1,11 +1,7 @@
 package org.sunbird.actor.notification;
 
-import java.io.StringWriter;
-import java.util.ArrayList;
-import java.util.List;
-import java.util.Map;
 import org.apache.commons.collections.CollectionUtils;
-import org.apache.commons.lang.StringUtils;
+import org.apache.commons.lang3.StringUtils;
 import org.apache.velocity.VelocityContext;
 import org.apache.velocity.app.Velocity;
 import org.sunbird.actor.core.BaseActor;
@@ -19,6 +15,11 @@
 import org.sunbird.service.notification.NotificationService;
 import org.sunbird.util.ProjectUtil;
 
+import java.io.StringWriter;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+
 public class EmailServiceActor extends BaseActor {
 
   private final NotificationService notificationService = new NotificationService();
diff --git a/service/src/main/java/org/sunbird/actor/notification/SendNotificationActor.java b/service/src/main/java/org/sunbird/actor/notification/SendNotificationActor.java
index 86ccd73964..9fcf9851e1 100644
--- a/service/src/main/java/org/sunbird/actor/notification/SendNotificationActor.java
+++ b/service/src/main/java/org/sunbird/actor/notification/SendNotificationActor.java
@@ -1,10 +1,7 @@
 package org.sunbird.actor.notification;
 
 import akka.actor.ActorRef;
-import java.util.*;
-import javax.inject.Inject;
-import javax.inject.Named;
-import org.apache.commons.lang.StringUtils;
+import org.apache.commons.lang3.StringUtils;
 import org.sunbird.actor.core.BaseActor;
 import org.sunbird.keys.JsonKey;
 import org.sunbird.operations.ActorOperations;
@@ -13,6 +10,10 @@
 import org.sunbird.response.Response;
 import org.sunbird.service.notification.NotificationService;
 
+import javax.inject.Inject;
+import javax.inject.Named;
+import java.util.*;
+
 public class SendNotificationActor extends BaseActor {
 
   private final NotificationService notificationService = new NotificationService();
diff --git a/service/src/main/java/org/sunbird/actor/user/ManagedUserActor.java b/service/src/main/java/org/sunbird/actor/user/ManagedUserActor.java
index 1fe59d8276..4d07395c43 100644
--- a/service/src/main/java/org/sunbird/actor/user/ManagedUserActor.java
+++ b/service/src/main/java/org/sunbird/actor/user/ManagedUserActor.java
@@ -1,13 +1,8 @@
 package org.sunbird.actor.user;
 
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
-import java.util.stream.Collectors;
 import org.apache.commons.collections.CollectionUtils;
-import org.apache.commons.lang.StringUtils;
 import org.apache.commons.lang3.BooleanUtils;
+import org.apache.commons.lang3.StringUtils;
 import org.sunbird.actor.user.validator.UserCreateRequestValidator;
 import org.sunbird.common.ElasticSearchHelper;
 import org.sunbird.dto.SearchDTO;
@@ -28,6 +23,12 @@
 import org.sunbird.util.*;
 import org.sunbird.util.user.UserUtil;
 
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.stream.Collectors;
+
 public class ManagedUserActor extends UserBaseActor {
 
   private final UserService userService = UserServiceImpl.getInstance();
diff --git a/service/src/main/java/org/sunbird/actor/user/UserOwnershipTransferActor.java b/service/src/main/java/org/sunbird/actor/user/UserOwnershipTransferActor.java
index 0dc45cbf6f..5b4e414277 100644
--- a/service/src/main/java/org/sunbird/actor/user/UserOwnershipTransferActor.java
+++ b/service/src/main/java/org/sunbird/actor/user/UserOwnershipTransferActor.java
@@ -1,7 +1,7 @@
 package org.sunbird.actor.user;
 
 import org.apache.commons.collections.MapUtils;
-import org.apache.commons.lang.StringUtils;
+import org.apache.commons.lang3.StringUtils;
 import org.sunbird.actor.core.BaseActor;
 import org.sunbird.exception.ProjectCommonException;
 import org.sunbird.exception.ResponseCode;
diff --git a/service/src/main/java/org/sunbird/dao/notification/impl/EmailTemplateDaoImpl.java b/service/src/main/java/org/sunbird/dao/notification/impl/EmailTemplateDaoImpl.java
index fea78cfd6a..b87ffc152e 100644
--- a/service/src/main/java/org/sunbird/dao/notification/impl/EmailTemplateDaoImpl.java
+++ b/service/src/main/java/org/sunbird/dao/notification/impl/EmailTemplateDaoImpl.java
@@ -1,11 +1,7 @@
 package org.sunbird.dao.notification.impl;
 
-import java.util.ArrayList;
-import java.util.Collections;
-import java.util.List;
-import java.util.Map;
 import org.apache.commons.collections.CollectionUtils;
-import org.apache.commons.lang.StringUtils;
+import org.apache.commons.lang3.StringUtils;
 import org.sunbird.cassandra.CassandraOperation;
 import org.sunbird.dao.notification.EmailTemplateDao;
 import org.sunbird.helper.ServiceFactory;
@@ -14,6 +10,11 @@
 import org.sunbird.response.Response;
 import org.sunbird.util.ProjectUtil;
 
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+import java.util.Map;
+
 public class EmailTemplateDaoImpl implements EmailTemplateDao {
 
   private static EmailTemplateDao emailTemplateDao;
diff --git a/service/src/main/java/org/sunbird/model/adminutil/AdminUtilRequest.java b/service/src/main/java/org/sunbird/model/adminutil/AdminUtilRequest.java
index 691df6bc7d..ac1eb51e54 100644
--- a/service/src/main/java/org/sunbird/model/adminutil/AdminUtilRequest.java
+++ b/service/src/main/java/org/sunbird/model/adminutil/AdminUtilRequest.java
@@ -1,7 +1,8 @@
 package org.sunbird.model.adminutil;
 
-import com.fasterxml.jackson.annotation.*;
-import org.apache.commons.lang.builder.ToStringBuilder;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import org.apache.commons.lang3.builder.ToStringBuilder;
 
 import java.io.Serializable;
 import java.util.List;
diff --git a/service/src/main/java/org/sunbird/model/adminutil/AdminUtilRequestData.java b/service/src/main/java/org/sunbird/model/adminutil/AdminUtilRequestData.java
index 7067373596..9dafe56ef6 100644
--- a/service/src/main/java/org/sunbird/model/adminutil/AdminUtilRequestData.java
+++ b/service/src/main/java/org/sunbird/model/adminutil/AdminUtilRequestData.java
@@ -1,7 +1,7 @@
 package org.sunbird.model.adminutil;
 
 import com.fasterxml.jackson.annotation.JsonProperty;
-import org.apache.commons.lang.builder.ToStringBuilder;
+import org.apache.commons.lang3.builder.ToStringBuilder;
 
 import java.io.Serializable;
 
diff --git a/service/src/main/java/org/sunbird/model/adminutil/AdminUtilRequestPayload.java b/service/src/main/java/org/sunbird/model/adminutil/AdminUtilRequestPayload.java
index 485b5a652c..2c010bc4d2 100644
--- a/service/src/main/java/org/sunbird/model/adminutil/AdminUtilRequestPayload.java
+++ b/service/src/main/java/org/sunbird/model/adminutil/AdminUtilRequestPayload.java
@@ -2,8 +2,9 @@
 
 import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import com.fasterxml.jackson.annotation.JsonProperty;
+import org.apache.commons.lang3.builder.ToStringBuilder;
+
 import java.io.Serializable;
-import org.apache.commons.lang.builder.ToStringBuilder;
 
 @JsonIgnoreProperties(ignoreUnknown = true)
 public class AdminUtilRequestPayload implements Serializable {
diff --git a/service/src/main/java/org/sunbird/model/adminutil/Params.java b/service/src/main/java/org/sunbird/model/adminutil/Params.java
index 93d375a6c3..3125db6a89 100644
--- a/service/src/main/java/org/sunbird/model/adminutil/Params.java
+++ b/service/src/main/java/org/sunbird/model/adminutil/Params.java
@@ -1,8 +1,9 @@
 package org.sunbird.model.adminutil;
 
 import com.fasterxml.jackson.annotation.JsonProperty;
+import org.apache.commons.lang3.builder.ToStringBuilder;
+
 import java.io.Serializable;
-import org.apache.commons.lang.builder.ToStringBuilder;
 
 public class Params implements Serializable {
   private static final long serialVersionUID = -8580469966189743283L;
diff --git a/service/src/main/java/org/sunbird/model/formutil/FormApiUtilRequestPayload.java b/service/src/main/java/org/sunbird/model/formutil/FormApiUtilRequestPayload.java
index 6ff50c8ee6..9303fd858a 100644
--- a/service/src/main/java/org/sunbird/model/formutil/FormApiUtilRequestPayload.java
+++ b/service/src/main/java/org/sunbird/model/formutil/FormApiUtilRequestPayload.java
@@ -2,10 +2,11 @@
 
 import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import com.fasterxml.jackson.annotation.JsonProperty;
-import java.io.Serializable;
-import org.apache.commons.lang.builder.ToStringBuilder;
+import org.apache.commons.lang3.builder.ToStringBuilder;
 import org.sunbird.model.adminutil.Params;
 
+import java.io.Serializable;
+
 @JsonIgnoreProperties(ignoreUnknown = true)
 public class FormApiUtilRequestPayload implements Serializable {
   private static final long serialVersionUID = -2362783406031347676L;
diff --git a/service/src/main/java/org/sunbird/service/notification/NotificationService.java b/service/src/main/java/org/sunbird/service/notification/NotificationService.java
index 91b20d5851..2a9b6629a5 100644
--- a/service/src/main/java/org/sunbird/service/notification/NotificationService.java
+++ b/service/src/main/java/org/sunbird/service/notification/NotificationService.java
@@ -1,16 +1,8 @@
 package org.sunbird.service.notification;
 
-import java.text.MessageFormat;
-import java.util.ArrayList;
-import java.util.Collections;
-import java.util.HashMap;
-import java.util.HashSet;
-import java.util.List;
-import java.util.Map;
-import java.util.Set;
 import org.apache.commons.collections.CollectionUtils;
 import org.apache.commons.collections.MapUtils;
-import org.apache.commons.lang.StringUtils;
+import org.apache.commons.lang3.StringUtils;
 import org.apache.velocity.VelocityContext;
 import org.sunbird.dao.notification.EmailTemplateDao;
 import org.sunbird.dao.notification.impl.EmailTemplateDaoImpl;
@@ -28,6 +20,9 @@
 import org.sunbird.service.user.impl.UserServiceImpl;
 import org.sunbird.util.ProjectUtil;
 
+import java.text.MessageFormat;
+import java.util.*;
+
 public class NotificationService {
 
   private final LoggerUtil logger = new LoggerUtil(NotificationService.class);
diff --git a/service/src/test/java/org/sunbird/dao/notification/EmailTemplateDaoImplTest.java b/service/src/test/java/org/sunbird/dao/notification/EmailTemplateDaoImplTest.java
index 41d2288442..f2116fe917 100644
--- a/service/src/test/java/org/sunbird/dao/notification/EmailTemplateDaoImplTest.java
+++ b/service/src/test/java/org/sunbird/dao/notification/EmailTemplateDaoImplTest.java
@@ -1,12 +1,6 @@
 package org.sunbird.dao.notification;
 
-import static org.powermock.api.mockito.PowerMockito.when;
-
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
-import org.apache.commons.lang.StringUtils;
+import org.apache.commons.lang3.StringUtils;
 import org.junit.Assert;
 import org.junit.Before;
 import org.junit.Test;
@@ -24,6 +18,13 @@
 import org.sunbird.response.Response;
 import org.sunbird.util.ProjectUtil;
 
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import static org.powermock.api.mockito.PowerMockito.when;
+
 @RunWith(PowerMockRunner.class)
 @PrepareForTest({
   CassandraOperationImpl.class,