diff --git a/community/lms/doctype/lms_batch/lms_batch.py b/community/lms/doctype/lms_batch/lms_batch.py
index 301f5f40..8ed2b990 100644
--- a/community/lms/doctype/lms_batch/lms_batch.py
+++ b/community/lms/doctype/lms_batch/lms_batch.py
@@ -19,7 +19,7 @@ class LMSBatch(Document):
            frappe.throw(_("You are not a mentor of the course {0}").format(course.title))
 
     def after_insert(self):
-        create_membership(batch=self.name, member_type="Mentor")
+        create_membership(batch=self.name, course=self.course, member_type="Mentor")
 
     def is_member(self, email, member_type=None):
         """Checks if a person is part of a batch.
diff --git a/community/lms/doctype/lms_batch_membership/lms_batch_membership.json b/community/lms/doctype/lms_batch_membership/lms_batch_membership.json
index 6a0cc143..ba43cd69 100644
--- a/community/lms/doctype/lms_batch_membership/lms_batch_membership.json
+++ b/community/lms/doctype/lms_batch_membership/lms_batch_membership.json
@@ -13,8 +13,7 @@
   "course",
   "member_type",
   "role",
-  "current_lesson",
-  "is_current"
+  "current_lesson"
  ],
  "fields": [
   {
@@ -81,19 +80,11 @@
    "fieldtype": "Data",
    "label": "Memeber Username",
    "read_only": 1
-  },
-  {
-   "default": "0",
-   "fieldname": "is_current",
-   "fieldtype": "Check",
-   "hidden": 1,
-   "label": "Is Currently Being Used",
-   "read_only": 1
   }
  ],
  "index_web_pages_for_search": 1,
  "links": [],
- "modified": "2021-06-14 10:24:35.425498",
+ "modified": "2021-06-21 12:10:28.808803",
  "modified_by": "Administrator",
  "module": "LMS",
  "name": "LMS Batch Membership",
diff --git a/community/lms/doctype/lms_batch_membership/lms_batch_membership.py b/community/lms/doctype/lms_batch_membership/lms_batch_membership.py
index c170dc4b..5dd33f09 100644
--- a/community/lms/doctype/lms_batch_membership/lms_batch_membership.py
+++ b/community/lms/doctype/lms_batch_membership/lms_batch_membership.py
@@ -14,18 +14,22 @@ class LMSBatchMembership(Document):
         self.validate_membership_in_different_batch_same_course()
 
     def validate_membership_in_same_batch(self):
+        filters={
+            "member": self.member,
+            "course": self.course,
+            "name": ["!=", self.name]
+        }
+        if self.batch:
+            filters["batch"] = self.batch
         previous_membership = frappe.db.get_value("LMS Batch Membership",
-            filters={
-                "member": self.member,
-                "batch": self.batch,
-                "name": ["!=", self.name]
-            },
+            filters,
             fieldname=["member_type","member"],
             as_dict=1)
 
         if previous_membership:
             member_name = frappe.db.get_value("User", self.member, "full_name")
-            frappe.throw(_("{0} is already a {1} of {2}").format(member_name, previous_membership.member_type, self.batch))
+            course_title = frappe.db.get_value("LMS Course", self.course, "title")
+            frappe.throw(_("{0} is already a {1} of the course {2}").format(member_name, previous_membership.member_type, course_title))
 
     def validate_membership_in_different_batch_same_course(self):
         course = frappe.db.get_value("LMS Batch", self.batch, "course")
diff --git a/community/lms/doctype/lms_course/lms_course.json b/community/lms/doctype/lms_course/lms_course.json
index 187a24e1..8b46e3ec 100644
--- a/community/lms/doctype/lms_course/lms_course.json
+++ b/community/lms/doctype/lms_course/lms_course.json
@@ -22,6 +22,7 @@
  "field_order": [
   "title",
   "is_published",
+  "disable_self_learning",
   "column_break_3",
   "short_code",
   "video_link",
@@ -73,6 +74,12 @@
    "fieldtype": "Small Text",
    "label": "Short Introduction",
    "reqd": 1
+  },
+  {
+   "default": "0",
+   "fieldname": "disable_self_learning",
+   "fieldtype": "Check",
+   "label": "Disable Self Learning"
   }
  ],
  "index_web_pages_for_search": 1,
@@ -99,7 +106,7 @@
    "link_fieldname": "course"
   }
  ],
- "modified": "2021-06-01 04:36:45.696776",
+ "modified": "2021-06-21 11:34:04.552376",
  "modified_by": "Administrator",
  "module": "LMS",
  "name": "LMS Course",
diff --git a/community/lms/doctype/lms_course/lms_course.py b/community/lms/doctype/lms_course/lms_course.py
index 4e70f2e3..0f3439ec 100644
--- a/community/lms/doctype/lms_course/lms_course.py
+++ b/community/lms/doctype/lms_course/lms_course.py
@@ -192,16 +192,17 @@ class LMSCourse(Document):
             return
         return f"/courses/{self.name}/learn/{lesson_number}"
 
-    def get_current_membership(self, member):
-        current_membership = frappe.get_all("LMS Batch Membership", {"member": member, "course": self.name, "is_current": 1}, ["name", "batch"])
-        if len(current_membership):
-            return current_membership[0]
-        return frappe.db.get_value("LMS Batch Membership", {"member": member, "course": self.name}, ["name","batch"], as_dict=True)
+    def get_membership(self, member, batch):
+        filters = {
+            "member": member,
+            "course": self.name
+        }
+        if batch:
+            filters["batch"] = batch
+        return frappe.db.get_value("LMS Batch Membership", filters, ["name","batch", "current_lesson"], as_dict=True)
 
     def get_all_memberships(self, member=frappe.session.user):
-        print(member, frappe.session.user)
-        all_memberships = frappe.get_all("LMS Batch Membership", {"member": member, "course": self.name}, ["batch", "is_current"])
-        print(all_memberships)
+        all_memberships = frappe.get_all("LMS Batch Membership", {"member": member, "course": self.name}, ["batch"])
         for membership in all_memberships:
             membership.batch_title = frappe.db.get_value("LMS Batch", membership.batch, "title")
         return all_memberships
@@ -214,7 +215,6 @@ class LMSCourse(Document):
         if batch:
             filters["batch"] = batch
 
-        print(filters)
         memberships = frappe.get_all(
                     "LMS Batch Membership",
                     filters,
diff --git a/community/lms/widgets/BatchTabs.html b/community/lms/widgets/BatchTabs.html
index 2c7dc758..2a5fc913 100644
--- a/community/lms/widgets/BatchTabs.html
+++ b/community/lms/widgets/BatchTabs.html
@@ -4,14 +4,14 @@
     {{ course.title }}</span> {% endif %}
   {% set all_memberships = course.get_all_memberships() %}
   {% if all_memberships | length > 1 %}
-    <a class="nav-link pull-right" href="#" id="navbarDropdown" role="button" data-toggle="dropdown" aria-haspopup="true"
+  <a class="nav-link pull-right" href="#" id="navbarDropdown" role="button" data-toggle="dropdown" aria-haspopup="true"
     aria-expanded="false">
     Switch Batch
   </a>
   <div class="dropdown-menu" aria-labelledby="navbarDropdown">
-    {% for membership in all_memberships %}
-    {% if not membership.is_current %}
-    <a class="dropdown-item switch-batch" href="#" data-batch="{{ membership.batch | urlencode }}" data-course="{{ course.name | urlencode }}">{{ membership.batch_title }}</a>
+    {% for data in all_memberships %}
+    {% if data.batch != membership.batch %}
+    <a class="dropdown-item switch-batch" href="/courses/{{ course.name }}/home?batch={{ data.batch }}">{{ data.batch_title }}</a>
     {% endif %}
     {% endfor %}
   </div>
@@ -22,18 +22,21 @@
 {% else %}
 {% set display_class = "" %}
 {% endif %}
+
 <ul class="nav nav-tabs mt-4">
   <li class="nav-item">
-    <a class="nav-link" id="home" href="/courses/{{course.name}}/home">Home</a>
+    <a class="nav-link" id="home" href="/courses/{{course.name}}/home{{ course.query_parameter }}">Home</a>
   </li>
   <li class="nav-item">
-    <a class="nav-link" id="learn" href="/courses/{{course.name}}/learn">Lessons</a>
+    {% set lesson_index = course.get_lesson_index(membership.current_lesson) if membership.current_lesson else '1.1' %}
+    <a class="nav-link" id="learn"
+      href="{{ course.get_learn_url(lesson_index) }}{{ course.query_parameter }}">Lessons</a>
   </li>
   <!-- <li class="nav-item">
     <a class="nav-link" id="schedule" href="/courses/{{course.name}}/schedule">Schedule</a>
   </li> -->
   <li class="nav-item {{ display_class }}">
-    <a class="nav-link" id="members" href="/courses/{{course.name}}/members">Members</a>
+    <a class="nav-link" id="members" href="/courses/{{course.name}}/members{{ course.query_parameter }}">Members</a>
   </li>
   <!-- <li class="nav-item {{ display_class }}">
     <a class="nav-link" id="discussion" href="/courses/{{course.name}}/discuss">Discussion</a>
@@ -41,37 +44,22 @@
   <!-- <li class="nav-item">
     <a class="nav-link" id="about" href="/courses/{{course.name}}/about">About</a>
   </li> -->
-  {% if batch and batch.is_member(frappe.session.user, member_type="Mentor") %}
+  {% if membership.batch and course.is_mentor(frappe.session.user) %}
   <li class="nav-item">
-    <a class="nav-link" id="progress" href="/courses/{{course.name}}/progress">Progress</a>
+    <a class="nav-link" id="progress" href="/courses/{{course.name}}/progress{{ course.query_parameter }}">Progress</a>
   </li>
   {% endif %}
 </ul>
+{% block script %}
 <script>
   frappe.ready(() => {
-    var selector = document.querySelector(`a[href="${decodeURIComponent(window.location.pathname)}"]`)
+    var selector = document.querySelector(`a[href="${decodeURIComponent(window.location.pathname)}{{ course.query_parameter }}"]`)
     if (selector) {
       selector.classList.add('active');
     }
     else {
       $("#learn").addClass('active')
     }
-
-    $(".switch-batch").click((e) => {
-      e.preventDefault();
-      var batch = decodeURIComponent($(e.currentTarget).attr("data-batch"));
-      var course = decodeURIComponent($(e.currentTarget).attr("data-course"));
-      frappe.call({
-        method: "community.lms.doctype.lms_batch_membership.lms_batch_membership.update_current_membership",
-        args: {
-          batch: batch,
-          course: course,
-          member: frappe.session.user
-        },
-        callback: (data) => {
-          window.location.reload();
-        }
-      })
-    })
   })
 </script>
+{% endblock %}
diff --git a/community/lms/widgets/ChapterTeaser.html b/community/lms/widgets/ChapterTeaser.html
index 505c2d96..b4a0179f 100644
--- a/community/lms/widgets/ChapterTeaser.html
+++ b/community/lms/widgets/ChapterTeaser.html
@@ -8,7 +8,7 @@
       {% for lesson in chapter.get_lessons() %}
       <div class="lesson-teaser">
         <a {% if show_link or lesson.include_in_preview %}
-          href="{{ course.get_learn_url(course.get_lesson_index(lesson.name)) }}" {% else %} href="" class="no-preview"
+          href="{{ course.get_learn_url(course.get_lesson_index(lesson.name)) }}{{course.query_parameter}}" {% else %} href="" class="no-preview"
           {% endif %} data-course="{{ course.name }}">{{ lesson.title }}</a>
         {% if show_progress and not course.is_mentor(frappe.session.user) and lesson.get_progress() %}
         <span class="ml-5 badge p-2 {{ lesson.get_slugified_class() }}"> {{ lesson.get_progress() }}</span>
diff --git a/community/lms/widgets/RenderBatch.html b/community/lms/widgets/RenderBatch.html
index 05bce4b7..bb70c2c5 100644
--- a/community/lms/widgets/RenderBatch.html
+++ b/community/lms/widgets/RenderBatch.html
@@ -18,7 +18,7 @@
   <div class="cta">
     <div class="">
       {% if can_manage %}
-      <a href="" class="btn btn-primary manage-batch" data-batch="{{ batch.name | urlencode }}"
+      <a href="/courses/{{ course.name }}/home?batch={{ batch.name }}" class="btn btn-primary manage-batch" data-batch="{{ batch.name | urlencode }}"
         data-course="{{ course.name | urlencode }}">Manage</a>
       {% elif can_join %}
       <button class="join-batch btn btn-secondary" data-batch="{{ batch.name | urlencode }}"
diff --git a/community/www/batch/join.html b/community/www/batch/join.html
index 0585d314..57796295 100644
--- a/community/www/batch/join.html
+++ b/community/www/batch/join.html
@@ -51,7 +51,8 @@ frappe.ready(() => {
       frappe.call({
         "method": "community.lms.doctype.lms_batch_membership.lms_batch_membership.create_membership",
         "args": {
-          "batch": "{{ batch.name }}"
+          "batch": {{ batch.name }},
+          "course": {{ batch.course }}
         },
         "callback": (data) => {
           if (data.message == "OK") {
@@ -66,20 +67,6 @@ frappe.ready(() => {
         }
       })
     })
-
-    $("#batch-home").click((e) => {
-      frappe.call({
-        method: "community.lms.doctype.lms_batch_membership.lms_batch_membership.update_current_membership",
-        args: {
-          "batch": "{{ batch.name }}",
-          "course": "{{ batch.course}}",
-          "member": frappe.session.user
-        },
-        callback: (data) => {
-          window.location.href = "/courses/{{ batch.course }}/home"
-        }
-      })
-    })
   })
 </script>
 {% endblock %}
diff --git a/community/www/batch/learn.html b/community/www/batch/learn.html
index a5db728e..cca415a7 100644
--- a/community/www/batch/learn.html
+++ b/community/www/batch/learn.html
@@ -65,9 +65,9 @@
 {{ ext.render_footer() }}
 {% endfor %}
 <script>
-  var membership = {{ membership }};
+  var membership = "{{ membership.name }}";
   var is_mentor = {{ course.is_mentor(frappe.session.user) }};
-  console.log(is_mentor)
+  console.log(membership)
   if (membership && !is_mentor) {
     frappe.call({
       method: "community.lms.doctype.lesson.lesson.save_progress",
@@ -78,9 +78,12 @@
     })
   }
   if (membership) {
-    frappe.call("community.lms.api.save_current_lesson", {
-      "course_name": "{{ course.name }}",
-      "lesson_name": "{{ lesson.name }}"
+    frappe.call({
+      method: "community.lms.api.save_current_lesson",
+      args: {
+        "course_name": "{{ course.name }}",
+        "lesson_name": "{{ lesson.name }}"
+      }
     })
   }
 </script>
diff --git a/community/www/batch/learn.py b/community/www/batch/learn.py
index 241bc1e7..062ff364 100644
--- a/community/www/batch/learn.py
+++ b/community/www/batch/learn.py
@@ -18,7 +18,7 @@ def get_context(context):
             index_ = get_lesson_index(context.course, context.batch, frappe.session.user) or "1.1"
         else:
             index_ = "1.1"
-        frappe.local.flags.redirect_location = context.course.get_learn_url(index_)
+        frappe.local.flags.redirect_location = context.course.get_learn_url(index_) + context.course.query_parameter
         raise frappe.Redirect
 
     context.lesson = context.course.get_lesson(chapter_index, lesson_index)
@@ -30,8 +30,8 @@ def get_context(context):
     next_ = outline.get_next(lesson_number)
     context.prev_chap = get_chapter_title(course_name, prev_)
     context.next_chap = get_chapter_title(course_name, next_)
-    context.next_url = context.course.get_learn_url(next_)
-    context.prev_url = context.course.get_learn_url(prev_)
+    context.next_url = context.course.get_learn_url(next_) + context.course.query_parameter
+    context.prev_url = context.course.get_learn_url(prev_) + context.course.query_parameter
 
     context.page_extensions = get_page_extensions()
 
diff --git a/community/www/batch/progress.html b/community/www/batch/progress.html
index 0762d835..3fa41bfe 100644
--- a/community/www/batch/progress.html
+++ b/community/www/batch/progress.html
@@ -24,7 +24,7 @@
 {% block content %}
 
 <div class="container">
-  {{ widgets.BatchTabs(course=course, batch=batch) }}
+  {{ widgets.BatchTabs(course=course, membership=membership) }}
   <div class="mentor-dashboard">
     <h3>Batch Progress</h3>
     {% for exercise in report.exercises %}
diff --git a/community/www/batch/progress.py b/community/www/batch/progress.py
index 70024864..446714e9 100644
--- a/community/www/batch/progress.py
+++ b/community/www/batch/progress.py
@@ -17,7 +17,7 @@ def get_context(context):
 
 class BatchReport:
     def __init__(self, course, batch):
-        self.submissions = get_submissions(batch)
+        self.submissions = get_submissions(course, batch)
         self.exercises = self.get_exercises(course.name)
         self.submissions_by_exercise = defaultdict(list)
         for s in self.submissions:
@@ -29,8 +29,10 @@ class BatchReport:
     def get_submissions_of_exercise(self, exercise_name):
         return self.submissions_by_exercise[exercise_name]
 
-def get_submissions(batch):
-    students = batch.get_students()
+def get_submissions(course, batch):
+    students = course.get_students(batch.name)
+    if not len(students):
+        return []
     students_map = {s.email: s for s in students}
     names, values = nparams("s", students_map.keys())
     sql = """
diff --git a/community/www/batch/utils.py b/community/www/batch/utils.py
index 3adb081a..24326964 100644
--- a/community/www/batch/utils.py
+++ b/community/www/batch/utils.py
@@ -5,14 +5,18 @@ def get_common_context(context):
     context.no_cache = 1
 
     course_name = frappe.form_dict["course"]
+    try:
+        batch_name = frappe.form_dict["batch"]
+    except KeyError:
+        batch_name = None
 
     course = Course.find(course_name)
     if not course:
         context.template = "www/404.html"
         return
+    context.course = course
 
-    membership = course.get_current_membership(frappe.session.user)
-
+    membership = course.get_membership(frappe.session.user, batch_name)
     if membership:
         context.membership = membership
         batch = course.get_batch(membership.batch)
@@ -22,14 +26,13 @@ def get_common_context(context):
 
         context.members = course.get_mentors(membership.batch) + course.get_students(membership.batch)
         context.member_count = len(context.members)
-
-
-    context.course = course
+        context.course.query_parameter = "?batch=" + batch.name if batch else ""
+        print(context.membership)
     context.livecode_url = get_livecode_url()
 
 def get_livecode_url():
     return frappe.db.get_single_value("LMS Settings", "livecode_url")
 
 def redirect_to_lesson(course, index_="1.1"):
-    frappe.local.flags.redirect_location = course.get_learn_url(index_)
+    frappe.local.flags.redirect_location = course.get_learn_url(index_) + course.query_parameter
     raise frappe.Redirect
diff --git a/community/www/courses/course.html b/community/www/courses/course.html
index 437a55a5..7de4c538 100644
--- a/community/www/courses/course.html
+++ b/community/www/courses/course.html
@@ -14,9 +14,11 @@
     </div>
     <div class="d-flex justify-content-between align-items-end">
       <h2 id="course-title" data-course="{{course.name}}">{{course.title}}</h2>
+      {% if not course.disable_self_learning and not course.is_mentor(frappe.session.user) %}
       <div>
-        <button class="btn btn-primary join-batch" data-course="{{ course.name | urlencode }}"> Join the Course</button>
+        <button class="btn btn-primary join-batch" data-course="{{ course.name | urlencode }}"> Start Learning </button>
       </div>
+      {% endif %}
     </div>
     <div class="course-short-intro">{{ course.short_introduction }}</div>
   </div>
diff --git a/community/www/courses/course.js b/community/www/courses/course.js
index 308b9636..f2cad0a2 100644
--- a/community/www/courses/course.js
+++ b/community/www/courses/course.js
@@ -75,21 +75,4 @@ frappe.ready(() => {
       }
     })
   })
-
-  $(".manage-batch").click((e) => {
-    e.preventDefault();
-    var batch = decodeURIComponent($(e.currentTarget).attr("data-batch"));
-    var course = decodeURIComponent($(e.currentTarget).attr("data-course"));
-    frappe.call({
-      method: "community.lms.doctype.lms_batch_membership.lms_batch_membership.update_current_membership",
-      args: {
-        batch: batch,
-        course: course,
-        member: frappe.session.user
-      },
-      callback: (data) => {
-        window.location.href = `/courses/${course}/home`;
-      }
-    })
-  })
 })
diff --git a/community/www/courses/course.py b/community/www/courses/course.py
index e2ff459f..3bc2f50f 100644
--- a/community/www/courses/course.py
+++ b/community/www/courses/course.py
@@ -16,9 +16,8 @@ def get_context(context):
         raise frappe.Redirect
 
     context.course = course
-
-    batch = course.get_student_batch(frappe.session.user)
-    if batch:
-        frappe.local.flags.redirect_location = f"/courses/{course.name}/learn"
-        raise frappe.Redirect
-
+    if not course.is_mentor(frappe.session.user):
+        batch = course.get_membership(frappe.session.user)
+        if batch:
+            frappe.local.flags.redirect_location = f"/courses/{course.name}/learn"
+            raise frappe.Redirect