diff --git a/_apidoc.js b/_apidoc.js
index 2d034d4..665d45e 100644
--- a/_apidoc.js
+++ b/_apidoc.js
@@ -665,3 +665,152 @@
  * @apiSuccess {String[]} module.cognitiveLevels Array of cognitive levels of
  * attainment as per Bloom's Taxanomy (L1-L6).
  */
+
+// ------------------------------------------------------------------------------------------
+// Activity.
+// ------------------------------------------------------------------------------------------
+
+/**
+ * @api {post} /activity/add Add Activty.
+ * @apiName AddActivity
+ * @apiGroup Activity
+ *
+ * @apiBody {Date} startTime The startTime of the activity.
+ * @apiBody {Number} duration The duration of the activity (in minutes).
+ * @apiBody {ObjectId} course The course of the activity (ObjectId).
+ * @apiBody {ObjectId} faculty The faculty alloted for the activity(ObjectId).
+ * @apiBody {String} type The type of activity.One of possible LECTURE, PRACTICAL, TUTORIAL.
+ * @apiBody {ObjectId} task The task of the activity (ObjectId).One of possible Topic,Practical,Tutorial.
+ * @apiBody {ObjectId} group The group of the activity (ObjectId).
+ * @apiBody {ObjectId} students the students who gonna attend the activity(ObjectId).
+ *
+ * @apiSuccess {String} res Response message.
+ *
+ * @apiError (Error 500) DatabaseError Error while inserting in the database.
+ *
+ * @apiDescription Adds a new Activity to the system.
+ */
+
+/**
+ *
+ * @apiSuccessExample Success-Response:
+ *     HTTP/1.1 200 OK
+ *     {
+ *       "res": "Added activity"
+ *     }
+ *
+ * @apiErrorExample Error-Response:
+ *     HTTP/1.1 500 Internal Server Error
+ *     {
+ *       "err": "Error while inserting in DB"
+ *     }
+ */
+
+/**
+ * @api {delete} /timetable/delete/:timetableId Delete Timetable
+ * @apiName DeleteTimetable
+ * @apiGroup Timetable
+ *
+ * @apiParam {String} timetableId The ID of the timetable document to delete.
+ *
+ * @apiSuccess {String} res Success message indicating the deletion.
+ *
+ * @apiError (Error 500) DatabaseError Error message if there was an error during the deletion.
+ */
+
+/**
+ * @api {delete} /activity/delete/:activity Delete Activity.
+ * @apiName DeleteActivity
+ * @apiGroup Activity
+ *
+ * @apiParam {String} Activity The activity document to delete.
+ *
+ * @apiSuccess {String} res Success message indicating the deletion.
+ *
+ * @apiError (Error 500) DatabaseError Error message if there was an error during the deletion.
+ */
+
+/**
+ * @api {post} /timetable/update Update Timetable
+ * @apiName UpdateTimetable
+ * @apiGroup Timetable
+ * @apiDescription Update existing timetable data.
+ *
+ * @apiBody {Date} startTime The startTime of the activity.
+ * @apiBody {Number} duration The duration of the activity (in minutes).
+ * @apiBody {ObjectId} course The course of the activity (ObjectId).
+ * @apiBody {ObjectId} faculty The faculty alloted for the activity(ObjectId).
+ * @apiBody {String} type The type of activity.One of possible LECTURE, PRACTICAL, TUTORIAL.
+ * @apiBody {ObjectId} task The task of the activity (ObjectId).One of possible Topic,Practical,Tutorial.
+ * @apiBody {ObjectId} group The group of the activity (ObjectId).
+ * @apiBody {ObjectId} students the students who gonna attend the activity(ObjectId).
+ *
+ * @apiSuccess {String} res Timetable updated.
+ */
+
+/**
+ * @api {post} /activity/update Update Activity.
+ * @apiName UpdateActivity
+ * @apiGroup Activity
+ * @apiDescription Update existing activity data.
+ *
+ * @apiBody {Date} startTime The startTime of the activity.
+ * @apiBody {Number} duration The duration of the activity (in minutes).
+ * @apiBody {ObjectId} course The course of the activity (ObjectId).
+ * @apiBody {ObjectId} faculty The faculty alloted for the activity(ObjectId).
+ * @apiBody {String} type The type of activity.One of possible LECTURE, PRACTICAL, TUTORIAL.
+ * @apiBody {ObjectId} task The task of the activity (ObjectId).One of possible Topic,Practical,Tutorial.
+ * @apiBody {ObjectId} group The group of the activity (ObjectId).
+ * @apiBody {ObjectId} students the students who gonna attend the activity(ObjectId).
+ *
+ * @apiSuccess {String} res Activity updated.
+ * @apiError (Error 500) DatabaseError Error in updating the database.
+ */
+
+/**
+ * @api {get} /timetable/list Get Timetable List
+ * @apiName GetTimetableList
+ * @apiGroup Timetable
+ *
+ * @apiQuery {Date} startTime The startTime of the activity.
+ * @apiQuery {Number} duration The duration of the activity (in minutes).
+ * @apiQUERY {ObjectId} course The course of the activity (ObjectId).
+ * @apiQuery {ObjectId} faculty The faculty alloted for the activity(ObjectId).
+ * @apiQuery {String} type The type of activity.One of possible LECTURE, PRACTICAL, TUTORIAL.
+ * @apiQuery {ObjectId} task The task of the activity (ObjectId).One of possible Topic,Practical,Tutorial.
+ * @apiQuery {ObjectId} group The group of the activity (ObjectId).
+ * @apiQuery {ObjectId} students the students who gonna attend the activity(ObjectId).
+ *
+ * @apiSuccess {Date} startTime The startTime of the activity.
+ * @apiSuccess {Number} duration The duration of the activity (in minutes).
+ * @apiSuccess {ObjectId} course The course of the activity (ObjectId).
+ * @apiSuccess {ObjectId} faculty The faculty alloted for the activity(ObjectId).
+ * @apiSuccess {String} type The type of activity.One of possible LECTURE, PRACTICAL, TUTORIAL.
+ * @apiSuccess {ObjectId} task The task of the activity (ObjectId).One of possible Topic,Practical,Tutorial.
+ * @apiSuccess {ObjectId} group The group of the activity (ObjectId).
+ * @apiSucess {ObjectId} students the students who gonna attend the activity(ObjectId).
+ */
+
+/**
+ * @api {get} /activity/list Get Activity List
+ * @apiName GetActivityList
+ * @apiGroup Activity
+ *
+ * @apiQuery {Date} startTime The startTime of the activity.
+ * @apiQuery {Number} duration The duration of the activity (in minutes).
+ * @apiQUERY {ObjectId} course The course of the activity (ObjectId).
+ * @apiQuery {ObjectId} faculty The faculty alloted for the activity(ObjectId).
+ * @apiQuery {String} type The type of activity.One of possible LECTURE, PRACTICAL, TUTORIAL.
+ * @apiQuery {ObjectId} task The task of the activity (ObjectId).One of possible Topic,Practical,Tutorial.
+ * @apiQuery {ObjectId} group The group of the activity (ObjectId).
+ * @apiQuery {ObjectId} students the students who gonna attend the activity(ObjectId).
+ *
+ * @apiSuccess {Date} startTime The startTime of the activity.
+ * @apiSuccess {Number} duration The duration of the activity (in minutes).
+ * @apiSuccess {ObjectId} course The course of the activity (ObjectId).
+ * @apiSuccess {ObjectId} faculty The faculty alloted for the activity(ObjectId).
+ * @apiSuccess {String} type The type of activity.One of possible LECTURE, PRACTICAL, TUTORIAL.
+ * @apiSuccess {ObjectId} task The task of the activity (ObjectId).One of possible Topic,Practical,Tutorial.
+ * @apiSuccess {ObjectId} group The group of the activity (ObjectId).
+ * @apiSucess {ObjectId} students the students who gonna attend the activity(ObjectId).
+ */
\ No newline at end of file
diff --git a/app.js b/app.js
index ddecdf4..e0d4c08 100644
--- a/app.js
+++ b/app.js
@@ -17,6 +17,7 @@ import tutorialRouter from "#routes/tutorial";
 import assignmentRouter from "#routes/assignment";
 import timetableRouter from "#routes/timetable";
 import courseworkRouter from "#routes/coursework";
+import activityRouter from "#routes/activity";
 import moduleRouter from "#routes/module";
 import { identifyUser } from "#middleware/identifyUser";
 import departmentRouter from "#routes/department";
@@ -46,6 +47,7 @@ app.use("/department", departmentRouter);
 app.use("/practical", practicalRouter);
 app.use("/organization", organizationRouter);
 app.use("/student", studentRouter);
+app.use("/activity", activityRouter);
 app.use("/tutorial", tutorialRouter);
 app.use("/assignment", assignmentRouter);
 app.use("/timetable", timetableRouter);
diff --git a/controller/activity.js b/controller/activity.js
new file mode 100644
index 0000000..2e1ceb3
--- /dev/null
+++ b/controller/activity.js
@@ -0,0 +1,64 @@
+import {
+    createActivity,deleteActivityById, activityList ,updateActivityById,
+}from "#services/activity";
+import {logger} from "#util" ;
+
+async function addActivity(req,res) {
+    const{
+        activityBlueprint,
+        startTime,
+        duration,
+        course,
+        faculty,
+        type,
+        task,
+        group,
+        students,
+    }=req.body;
+    try{
+        const newActivity = await createActivity(activityBlueprint,startTime,duration,course,faculty,type,task,group,students);
+        res.json ({res: `added activity ${newActivity.id}`, id: newActivity.id});
+    } catch (error){
+        logger.error ("Error while inserting",error);
+        res.status(500);
+        res.json({err:"Error while inserting in DB"});
+    }
+}
+
+async function updateActivity(req,res){
+    const { id }=req.params;
+    const {
+        ...data  
+    }=req.body;
+    try {
+         await updateActivityById(id,data);
+        res.json({res:`updated activity with id ${id}`});
+    }catch (error){
+        logger.error("Error while updating",error);
+        res.status(500);
+        res.json({err:"Error while updating in DB"});
+    }
+}
+
+async function getActivity(req,res){
+    const filter = req.query;
+    const activitylist =await activityList(filter);
+    res.json({res:activitylist});
+}
+
+
+async function deleteActivity(res,req){
+    const { id }=req.params;
+    try{
+        await deleteActivityById(id);
+
+        res.json({res:`Deleted activity with ID ${id}`});
+    }catch(error){
+        logger.error ("Error while deleting",error);
+        res.status(500).json({error:"Error while deleting from DB"});
+    }
+}
+
+export default {
+    addActivity, deleteActivity ,getActivity ,updateActivity,
+};
\ No newline at end of file
diff --git a/models/activity.js b/models/activity.js
index 4ea2742..08dee96 100644
--- a/models/activity.js
+++ b/models/activity.js
@@ -22,37 +22,41 @@ const activitySchema = {
 
 const Activity = connector.model("Activity", activitySchema);
 
-// crud
+///crud operation///
 
-async function create(activityData) {
+//add a activity to the database
+async function create(activityData){
   const {
-    activityBlueprint, startTime, duration, course, faculty, type, task, group, students,
-  } = activityData;
-  const activity = new Activity({
-    activityBlueprint, startTime, duration, course, faculty, type, task, group, students,
+    activityBlueprint, startTime,duration,course,faculty,type,task,group,students,
+  }=activityData;
+  const activity= new Activity({
+    activityBlueprint, startTime,duration,course,faculty,type,task,group,students,
   });
-  const activityDoc = await activity.save();
+  const activityDoc =await activity.save();
   return activityDoc;
 }
 
-async function read(filter, limit = 1) {
-  const activityDoc = await Activity.find(filter).limit(limit);
-  return activityDoc;
+//Retrieve activity based on a given  filter and limit
+async function read(filter,limit=1){
+  const activityDoc = await Activity.find (filter).limit(limit);
+  return activityDoc ; 
 }
 
-async function update(filter, updateObject, options = { multi: true }) {
-  const updateResult = await Activity.updateMany(filter, { $set: updateObject }, options);
-  return updateResult.acknowledged;
+//update activity based on a given filter 
+async function update(filter,updateObject,options={multi:true}){
+  const updateActivity= await Activity.updateMany(filter,{$set:updateObject},options);
+return updateActivity.acknowledged;
 }
 
-async function remove(filter) {
-  const deleteResult = await Activity.deleteMany(filter);
-  return deleteResult.acknowledged;
+//Delete activity based on a given filter
+async function remove(filter){
+  const deleteActivity= await Activity.deleteMany(filter).exec();
+  return deleteActivity.acknowledged
 }
 
-export default {
-  create,
-  read,
-  update,
-  remove,
+//export crud functions
+
+export default{
+  create,read,update,remove,
 };
+
diff --git a/routes/activity.js b/routes/activity.js
new file mode 100644
index 0000000..f5c40a2
--- /dev/null
+++ b/routes/activity.js
@@ -0,0 +1,10 @@
+import express from "express";
+import activityController from "#controller/activity";
+
+const router=express.Router();
+router.post("/add",activityController.addActivity);
+router.get("/list",activityController.getActivity);
+router.post("/update/:id",activityController.updateActivity);
+router.delete("/delete/:id",activityController.deleteActivity);
+
+export default router;
\ No newline at end of file
diff --git a/services/activity.js b/services/activity.js
new file mode 100644
index 0000000..ae14c05
--- /dev/null
+++ b/services/activity.js
@@ -0,0 +1,33 @@
+import Activity from "#models/activity" ;
+import databaseError from "#error/database";
+
+export async function createActivity (activityBlueprint,startTime,duration,course,faculty,type,task,group,students){
+    const newActivity = await Activity.create({
+        activityBlueprint,startTime,duration,course,faculty,task,type,group,students,
+    });
+    if (newActivity){
+        return newActivity;
+    }
+    throw new databaseError.DataEntryError("actvity");
+}
+
+export async function updateActivityById(id,data){
+const updated= await Activity.update({_id:id},data);
+if (updated){
+    return updated;
+}
+throw new databaseError.DataEntryError("activity");
+}
+
+export async function activityList(filter){
+    const activitylist = await Activity.read(filter,0);
+    return activitylist;
+}
+
+export async function deleteActivityById(id){
+    const deleted = await Activity.remove({_id:id},data);
+    if(deleted){
+        return deleted;
+    }
+    throw new databaseError.DataDeleteError("activity");
+}
\ No newline at end of file
diff --git a/test/routes/activity.test.js b/test/routes/activity.test.js
new file mode 100644
index 0000000..abdeb36
--- /dev/null
+++ b/test/routes/activity.test.js
@@ -0,0 +1,116 @@
+import { jest } from "@jest/globals"; //eslint-disable-line-import/no-extraneous-dependencies
+import request from "supertest";
+import app from "#app";//Update this import based on your app's 
+import connector from "#models/databaseUtil"; //Update this import
+import activityModel from "#models/activity"; //Update this import
+
+jest.mock("#util");
+
+let server;
+let agent;
+
+beforeAll((done) => {
+  server = app.listen(null, () => {
+    agent = request.agent(server);
+    connector.set("debug", false);
+    done();
+  });
+});
+
+function cleanUp(callback) {
+  activityModel
+    .remove({
+      startTime: "2023-06-18T14:11:30Z",
+      duration: 2,
+      course: "64fc3c8bde9fa947ea1f412f",
+      faculty: "64fc3c8bde9fa947ea1f412f",
+      type: "LECTURE",
+      task: ["64fc3c8bde9fa947ea1f412f"],
+      group: "64fc3c8bde9fa947ea1f412f",
+      students: ["64fc3c8bde9fa947ea1f412f"]
+    })
+    .then(() => {
+      connector.disconnect((DBerr) => {
+        if (DBerr) console.log("Database disconnect error : ", DBerr);
+        server.close((serverErr) => {
+          if (serverErr) console.log(serverErr);
+          callback();
+        });
+      });
+    });
+}
+
+
+afterAll((done) => {
+  cleanUp(done);
+});
+
+describe("Activity API", () => {
+  it("should create activity", async () => {
+    const response = await agent.post("/activity/add").send({
+      activityBlueprint: "5f8778b54b553439ac49a03a",
+      startTime: "2023-06-18T14:11:30Z",
+      duration: 2,
+      course: "5f8778b54b553439ac49a03a",
+      faculty: "5f8778b54b553439ac49a03a",
+      type: "LECTURE",
+      task: ["5f8778b54b553439ac49a03a"],
+      group: "5f8778b54b553439ac49a03a",
+      students: ["5f8778b54b553439ac49a03a"]
+    });
+    
+    expect(response.status).toBe(200);
+    expect(response.body.res).toMatch(/added activity/);
+  });
+
+  describe("after adding activity", () => {
+    let id;
+    beforeEach(async () => {
+      id = await agent.post("/activity/add").send({
+        activityBlueprint: "64fc3c8bde9fa947ea1f412f",
+        startTime: "2023-06-18T14:11:30Z",
+        duration: 2,
+        course: "64fc3c8bde9fa947ea1f412f",
+        faculty: "64fc3c8bde9fa947ea1f412f",
+        type: "LECTURE",
+        task: ["64fc3c8bde9fa947ea1f412f"],
+        group: "64fc3c8bde9fa947ea1f412f",
+        students: ["64fc3c8bde9fa947ea1f412f"]
+      });
+      id = JSON.parse(id.res.text).id;
+    });
+
+    afterEach(async () => {
+      await activityModel.remove({
+        activityBlueprint: "64fc3c8bde9fa947ea1f412f",
+        startTime: "2023-06-18T14:11:30Z",
+        duration: 2,
+        course: "64fc3c8bde9fa947ea1f412f",
+        faculty: "64fc3c8bde9fa947ea1f412f",
+        type: "LECTURE",
+        task: ["64fc3c8bde9fa947ea1f412f"],
+        group: "64fc3c8bde9fa947ea1f412f",
+        students: ["64fc3c8bde9fa947ea1f412f"]
+      });
+    });
+
+    it("should read activity", async () => {
+      const response = await agent
+        .get("/activity/list")
+        .send({ startTime: "2023-06-18T14:11:30Z" });
+      expect(response.status).toBe(200);
+      expect(response.body.res).toBeDefined();
+    });
+
+    it("should update activity", async () => {
+      const response = await agent
+        .post(`/activity/update/${id}`)
+        .send({
+          duration: 5,
+        });
+
+      expect(response.status).toBe(200);
+      expect(response.body.res).toMatch(/updated activity/);
+    });
+  });
+});