2 Factor Authentication login in Azure Active Directory in my MVC Web App

Hello Team,

I want to know the easiest possible code to handle 2 factor authentication using user credentials in my MVC Web App.

Currently I have registered the app as a native app on azure portal as I need to authenticate using username and password.

I am using the AAD CLient Graph Library and ADAL for authentication.Please find the below code for your reference.

public async Task<string> AuthenticateAADUser(string UserName, string Password)
        {
            try
            {
                             return await GetAppTokenAsync(UserName, Password);
            }
            catch (AdalException ex)
            {
                var errorCode = ((Microsoft.IdentityModel.Clients.ActiveDirectory.AdalException)(ex)).ErrorCode;    
                if(errorCode == "invalid_grant")
                {
                    loginStatus = "Invalid Username or Password";
                }
                else
                {
                    loginStatus = "Invalid Active Directory Settings";
                }
                return string.Empty;
            }
        }
        private static async Task<string> GetAppTokenAsync(string UserName, string Password)
        {            
            string clientID = ConfigurationManager.AppSettings["AADAppID"];
            string authString = ConfigurationManager.AppSettings["AADAuthURL"];
            string resAzureGraphAPI = ConfigurationManager.AppSettings["AADGraphAPI"];
            // Instantiate an AuthenticationContext for my directory (see authString above).

            AuthenticationContext authenticationContext = new AuthenticationContext(authString, false);
            authenticationContext.TokenCache.Clear();

            //UserPasswordCredential credentials = new UserPasswordCredential("ashish@ohmintl.com","mypass@1950");
            UserPasswordCredential credentials = new UserPasswordCredential(UserName, Password);            
            // Acquire an access token from Azure AD to access the Azure AD Graph (the resource)
            // using the Username and Password as credentials.

            AuthenticationResult authenticationResult = await authenticationContext.AcquireTokenAsync(resAzureGraphAPI, clientID, credentials);





            // Return the access token.
            return authenticationResult.AccessToken;
        }

This code works fine but throws an exception "User Interaction required" when 2 Factor Authentication is enabled on the user.I have searched every possible microsoft blog but didnt find any concrete solution. Please if anybody can help as I need to deliver it urgently.