diff --git a/backend/src/ThreeTee.Api/Controllers/DepartmentController.cs b/backend/src/ThreeTee.Api/Controllers/DepartmentController.cs
index 8714c71..77a9a2d 100644
--- a/backend/src/ThreeTee.Api/Controllers/DepartmentController.cs
+++ b/backend/src/ThreeTee.Api/Controllers/DepartmentController.cs
@@ -1,5 +1,8 @@
 using Microsoft.AspNetCore.Mvc;
-using ThreeTee.Application.Interfaces;
+using ThreeTee.Application.Cqrs.Departments.Commands.CreateDepartment;
+using ThreeTee.Application.Cqrs.Departments.Commands.DeleteDepartment;
+using ThreeTee.Application.Cqrs.Departments.Commands.UpdateDepartment;
+using ThreeTee.Application.Cqrs.Departments.Queries;
 using ThreeTee.Application.Models.Departments;
 
 // For more information on enabling Web API for empty projects, visit https://go.microsoft.com/fwlink/?LinkID=397860
@@ -8,56 +11,54 @@ namespace ThreeTee.Api.Controllers
 {
     [Route("api/[controller]")]
     [ApiController]
-    public class DepartmentController : ControllerBase
+    public class DepartmentController : ApiControllerBase
     {
-        private readonly IDepartmentService _departmentService;
-        public DepartmentController(IDepartmentService departmentService)
-        {
-                _departmentService = departmentService;
-        }
-
         // GET: api/<DepartmentController>
         [HttpGet]
         [Produces(typeof(List<DepartmentResponse>))]
-        public async Task<IResult> Get()
+        public async Task<IResult> Get([FromQuery]GetDepartmentsWithPaginationQuery query)
         {
-            var items = await _departmentService.GetAsync();
-            return TypedResults.Ok(items);
+            var items = await Mediator.Send(query);
+            if (items != null) { return TypedResults.Ok(items); }
+            return TypedResults.NotFound();
         }
 
         // GET api/<DepartmentController>/5
         [HttpGet("{id}")]
         [Produces(typeof(List<DepartmentResponse>))]
-        public async Task<IResult> Get(Guid id)
+        public async Task<IResult> Get([FromQuery]GetDepartmentsByIdQuery query)
         {
-            var item = await _departmentService.GetByIdAsync(id);
-            return TypedResults.Ok(item);
+            var item = await Mediator.Send(query);
+            if(item != null) { return TypedResults.Ok(item); }
+            return TypedResults.NotFound();
         }
 
         // POST api/<DepartmentController>
         [HttpPost]
-        public async Task<IResult> Post([FromBody] DepartmentPostRequest value)
+        public async Task<IResult> Post([FromBody] CreateDepartmentCommand query)
         {
-            var ret = await _departmentService.InsertAsync(value);
-            if(ret==null) { return null; }
+            var ret = await Mediator.Send(query);
+            if (ret == null) { return TypedResults.BadRequest(); }
             return TypedResults.Ok(ret);
         }
 
         // PUT api/<DepartmentController>/5
         [HttpPut]
-        public async Task<IResult> Put([FromBody] DepartmentPutRequest value)
+        public async Task<IResult> Put([FromBody] UpdateDepartmentCommand query)
         {
-            var ret = await _departmentService.UpdateAsync(value);
-            if (ret == null) return null;
+            var ret = await Mediator.Send(query);
+            if (ret == null) return TypedResults.BadRequest();
             return TypedResults.Ok(ret);
         }
 
         // DELETE api/<DepartmentController>/5
         [HttpDelete("{id}")]
 
-        public async Task<IResult> Delete(Guid id)
+        public async Task<IResult> Delete(DeleteDepartmentCommand query)
         {
-            await _departmentService.DeleteAsync(id);
+            var ret = await Mediator.Send(query);
+            if(ret!= Guid.Empty)
+                return TypedResults.BadRequest();
             return TypedResults.NoContent();
         }
     }
diff --git a/backend/src/ThreeTee.Application/Cqrs/Departments/Commands/CreateDepartment/CreateDepartmentCommand.cs b/backend/src/ThreeTee.Application/Cqrs/Departments/Commands/CreateDepartment/CreateDepartmentCommand.cs
new file mode 100644
index 0000000..ffe9ac4
--- /dev/null
+++ b/backend/src/ThreeTee.Application/Cqrs/Departments/Commands/CreateDepartment/CreateDepartmentCommand.cs
@@ -0,0 +1,28 @@
+using Mapster;
+using MediatR;
+using ThreeTee.Core.Entities;
+
+namespace ThreeTee.Application.Cqrs.Departments.Commands.CreateDepartment;
+public class CreateDepartmentCommand : IRequest<Department>
+{
+    public string Name { get; set; }
+    public string Code { get; set; }
+}
+
+public class CreateDepartmentCommandHandler : IRequestHandler<CreateDepartmentCommand, Department>
+{
+    private readonly IEntitiesContext _context;
+    public CreateDepartmentCommandHandler(IEntitiesContext context)
+    {
+        _context = context;
+    }
+    public async Task<Department> Handle(CreateDepartmentCommand request, CancellationToken cancellationToken)
+    {
+        var department = request.Adapt<Department>();
+
+        _context.Departments.Add(department);
+        await _context.SaveChangesAsync(cancellationToken);
+        return department;
+    }
+}
+
diff --git a/backend/src/ThreeTee.Application/Cqrs/Departments/Commands/CreateDepartment/CreateDepartmentCommandValidator.cs b/backend/src/ThreeTee.Application/Cqrs/Departments/Commands/CreateDepartment/CreateDepartmentCommandValidator.cs
new file mode 100644
index 0000000..205d29c
--- /dev/null
+++ b/backend/src/ThreeTee.Application/Cqrs/Departments/Commands/CreateDepartment/CreateDepartmentCommandValidator.cs
@@ -0,0 +1,14 @@
+using FluentValidation;
+
+namespace ThreeTee.Application.Cqrs.Departments.Commands.CreateDepartment;
+public class CreateDepartmentCommandValidator : AbstractValidator<CreateDepartmentCommand>
+{
+    public CreateDepartmentCommandValidator()
+    {
+        RuleFor(e => e.Name)
+            .NotEmpty();
+        RuleFor(e => e.Code)
+            .NotEmpty();
+    }
+}
+
diff --git a/backend/src/ThreeTee.Application/Cqrs/Departments/Commands/DeleteDepartment/DeleteDepartmentCommandValidator.cs b/backend/src/ThreeTee.Application/Cqrs/Departments/Commands/DeleteDepartment/DeleteDepartmentCommandValidator.cs
new file mode 100644
index 0000000..49c0dfa
--- /dev/null
+++ b/backend/src/ThreeTee.Application/Cqrs/Departments/Commands/DeleteDepartment/DeleteDepartmentCommandValidator.cs
@@ -0,0 +1,12 @@
+using FluentValidation;
+
+namespace ThreeTee.Application.Cqrs.Departments.Commands.DeleteDepartment;
+public  class DeleteDesignationCommandValidator:AbstractValidator<DeleteDepartmentCommand>
+{
+    public DeleteDesignationCommandValidator()
+    {
+        RuleFor(e => e.Id)
+            .NotEmpty();
+    }
+}
+
diff --git a/backend/src/ThreeTee.Application/Cqrs/Departments/Commands/DeleteDepartment/DeleteDesignationCommand.cs b/backend/src/ThreeTee.Application/Cqrs/Departments/Commands/DeleteDepartment/DeleteDesignationCommand.cs
new file mode 100644
index 0000000..0f61a98
--- /dev/null
+++ b/backend/src/ThreeTee.Application/Cqrs/Departments/Commands/DeleteDepartment/DeleteDesignationCommand.cs
@@ -0,0 +1,28 @@
+using MediatR;
+using Microsoft.EntityFrameworkCore;
+
+namespace ThreeTee.Application.Cqrs.Departments.Commands.DeleteDepartment;
+public class DeleteDepartmentCommand : IRequest<Guid>
+{
+    public Guid Id { get; set; }
+}
+public class DeleteDepartmentCommandHanlder : IRequestHandler<DeleteDepartmentCommand, Guid>
+{
+    private readonly IEntitiesContext _context;
+    public DeleteDepartmentCommandHanlder(IEntitiesContext context)
+    {
+        _context = context;
+    }
+
+    public async Task<Guid> Handle(DeleteDepartmentCommand request, CancellationToken cancellationToken)
+    {
+        var department = await _context.Departments.FirstOrDefaultAsync(e => e.Id == request.Id);
+        if (department != null)
+        {
+            _context.Departments.Remove(department);
+            await _context.SaveChangesAsync(cancellationToken);
+            return department.Id;
+        }
+        return Guid.Empty;
+    }
+}
diff --git a/backend/src/ThreeTee.Application/Cqrs/Departments/Commands/UpdateDepartment/UpdateDepartmentCommand.cs b/backend/src/ThreeTee.Application/Cqrs/Departments/Commands/UpdateDepartment/UpdateDepartmentCommand.cs
new file mode 100644
index 0000000..0102b19
--- /dev/null
+++ b/backend/src/ThreeTee.Application/Cqrs/Departments/Commands/UpdateDepartment/UpdateDepartmentCommand.cs
@@ -0,0 +1,28 @@
+using Mapster;
+using MediatR;
+using ThreeTee.Core.Entities;
+
+namespace ThreeTee.Application.Cqrs.Departments.Commands.UpdateDepartment;
+public class UpdateDepartmentCommand : IRequest<Department>
+{
+    public Guid Id { get; set; }
+    public string Name { get; set; }
+    public string Code { get; set; }
+}
+
+public class UpdateDepartmentCommandHandler : IRequestHandler<UpdateDepartmentCommand, Department>
+{
+    private readonly IEntitiesContext _context;
+    public UpdateDepartmentCommandHandler(IEntitiesContext context)
+    {
+        _context = context;
+    }
+    public async Task<Department> Handle(UpdateDepartmentCommand request, CancellationToken cancellationToken)
+    {
+        var entity = request.Adapt<Department>();
+        _context.Departments.Update(entity);
+
+        await _context.SaveChangesAsync(cancellationToken);
+        return entity;
+    }
+}
diff --git a/backend/src/ThreeTee.Application/Cqrs/Departments/Commands/UpdateDepartment/UpdateDepartmentCommandValidator.cs b/backend/src/ThreeTee.Application/Cqrs/Departments/Commands/UpdateDepartment/UpdateDepartmentCommandValidator.cs
new file mode 100644
index 0000000..c57bb8d
--- /dev/null
+++ b/backend/src/ThreeTee.Application/Cqrs/Departments/Commands/UpdateDepartment/UpdateDepartmentCommandValidator.cs
@@ -0,0 +1,16 @@
+using FluentValidation;
+
+namespace ThreeTee.Application.Cqrs.Departments.Commands.UpdateDepartment;
+public class UpdateDepartmentCommandValidator : AbstractValidator<UpdateDepartmentCommand>
+{
+    public UpdateDepartmentCommandValidator()
+    {
+        RuleFor(e => e.Name)
+            .NotEmpty();
+        RuleFor(e => e.Id)
+            .NotEmpty();
+        RuleFor(e => e.Code)
+            .NotEmpty();
+    }
+}
+
diff --git a/backend/src/ThreeTee.Application/Cqrs/Departments/Queries/GetDepartmentsById.cs b/backend/src/ThreeTee.Application/Cqrs/Departments/Queries/GetDepartmentsById.cs
new file mode 100644
index 0000000..ab459b1
--- /dev/null
+++ b/backend/src/ThreeTee.Application/Cqrs/Departments/Queries/GetDepartmentsById.cs
@@ -0,0 +1,32 @@
+using Mapster;
+using MediatR;
+using Microsoft.EntityFrameworkCore;
+using ThreeTee.Application.Models.Departments;
+
+namespace ThreeTee.Application.Cqrs.Departments.Queries;
+public class GetDepartmentsByIdQuery : IRequest<DepartmentResponse>
+{
+    public Guid Id { get; set; }
+}
+
+public class GetDepartmentsByIdQueryHandler : IRequestHandler<GetDepartmentsByIdQuery, DepartmentResponse>
+{
+    private readonly IEntitiesContext _context;
+    public GetDepartmentsByIdQueryHandler(IEntitiesContext context)
+    {
+        _context = context;
+    }
+    public async Task<DepartmentResponse> Handle(GetDepartmentsByIdQuery request, CancellationToken cancellationToken)
+    {
+        var department = await _context.Departments.ProjectToType<DepartmentResponse>().FirstOrDefaultAsync(e => e.Id == request.Id, cancellationToken);
+        if (department != null)
+        {
+            //CHECK IT
+            var depVal = _context.DepartmentManager.FirstOrDefault(e => e.DepartmentId == request.Id)?.UserId;
+            //department.DepartmentManager = _context.ProjectUsers.FirstOrDefault(u=>u.UserId == depVal)?.User.UserName;
+            return department;
+        }
+        return null;
+    }
+}
+
diff --git a/backend/src/ThreeTee.Application/Cqrs/Departments/Queries/GetDepartmentsWithPagination.cs b/backend/src/ThreeTee.Application/Cqrs/Departments/Queries/GetDepartmentsWithPagination.cs
new file mode 100644
index 0000000..f98db4e
--- /dev/null
+++ b/backend/src/ThreeTee.Application/Cqrs/Departments/Queries/GetDepartmentsWithPagination.cs
@@ -0,0 +1,32 @@
+using Mapster;
+using MediatR;
+using ThreeTee.Application.Mappings;
+using ThreeTee.Application.Models;
+using ThreeTee.Application.Models.Departments;
+
+namespace ThreeTee.Application.Cqrs.Departments.Queries;
+public class GetDepartmentsWithPaginationQuery : IRequest<PaginatedList<DepartmentResponse>>
+{
+    public int PageNumber { get; set; } = 1;
+    public int PageSize { get; set; } = 10;
+}
+
+public class GetDepartmentsWithPaginationQueryHandler : IRequestHandler<GetDepartmentsWithPaginationQuery, PaginatedList<DepartmentResponse>>
+{
+    private readonly IEntitiesContext _context;
+    public GetDepartmentsWithPaginationQueryHandler(IEntitiesContext context)
+    {
+        _context = context;
+    }
+
+    public async  Task<PaginatedList<DepartmentResponse>> Handle(GetDepartmentsWithPaginationQuery request, CancellationToken cancellationToken)
+    {
+        var departments = await _context.Departments
+               .ProjectToType<DepartmentResponse>()
+               .PaginatedListAsync(request.PageNumber, request.PageSize);
+        if (departments != null)
+            return departments;
+        return null;
+    }
+}
+
diff --git a/backend/src/ThreeTee.Application/Interfaces/IEntitiesContext.cs b/backend/src/ThreeTee.Application/Interfaces/IEntitiesContext.cs
index 1e47193..a7a171e 100644
--- a/backend/src/ThreeTee.Application/Interfaces/IEntitiesContext.cs
+++ b/backend/src/ThreeTee.Application/Interfaces/IEntitiesContext.cs
@@ -13,5 +13,6 @@ public interface IEntitiesContext
     DbSet<ProjectUser> ProjectUsers { get; set; }
     DbSet<Status> Statuses { get; set; }
     DbSet<UserDepartment> UserDepartments { get; set; }
+    DbSet<DepartmentManager> DepartmentManager { get; set; }
     Task<int> SaveChangesAsync(CancellationToken cancellationToken);
 }
\ No newline at end of file
diff --git a/backend/src/ThreeTee.Application/Models/Departments/DepartmentResponse.cs b/backend/src/ThreeTee.Application/Models/Departments/DepartmentResponse.cs
index 44f5e81..429f6fe 100644
--- a/backend/src/ThreeTee.Application/Models/Departments/DepartmentResponse.cs
+++ b/backend/src/ThreeTee.Application/Models/Departments/DepartmentResponse.cs
@@ -7,5 +7,6 @@ public class DepartmentResponse : DepartmentPostRequest
     public DateTime CreatedAt { get; set; }
     public DateTime? UpdatedAt { get; set; }
     public string? LastTouchedBy { get; set; }
+    public string? DepartmentManager { get; set; }
 }
 
diff --git a/backend/src/ThreeTee.Infrastructure.Persistence.Npgsql/Data/EntitiesContext.cs b/backend/src/ThreeTee.Infrastructure.Persistence.Npgsql/Data/EntitiesContext.cs
index 1921888..ef2f9dd 100644
--- a/backend/src/ThreeTee.Infrastructure.Persistence.Npgsql/Data/EntitiesContext.cs
+++ b/backend/src/ThreeTee.Infrastructure.Persistence.Npgsql/Data/EntitiesContext.cs
@@ -17,6 +17,7 @@ public class EntitiesContext : IdentityDbContext<ApplicationUser, IdentityRole<G
     public DbSet<ProjectUser> ProjectUsers { get; set; }
     public DbSet<Status> Statuses { get; set; }
     public DbSet<UserDepartment> UserDepartments { get; set; }
+    public DbSet<DepartmentManager> DepartmentManager { get; set; }
 
     public EntitiesContext(DbContextOptions options) : base(options)
     {