diff --git a/_apidoc.js b/_apidoc.js
index 46e0702..5547b72 100644
--- a/_apidoc.js
+++ b/_apidoc.js
@@ -1,19 +1,107 @@
-// ------------------------------------------------------------------------------------------
-// General apiDoc documentation blocks and old history blocks.
-// ------------------------------------------------------------------------------------------
+/**
+ * @api {post} /auth Login User
+ * @apiName LoginUser
+ * @apiGroup Authentication
+ * 
+ * @apiParam {String} id User ID.
+ * @apiParam {String} password User password.
+ * 
+ * @apiSuccess {String} res Response message.
+ * @apiSuccess {Object} user User details.
+ * @apiSuccess {String} user.uid User ID.
+ * @apiSuccess {String} user.name User name.
+ * @apiSuccess {String} user.emailId User email ID.
+ * @apiSuccess {String} user.type User type.
+ * @apiSuccess {String} user.token User token.
+ * 
+ * @apiSuccessExample Success Response:
+ *     HTTP/1.1 200 OK
+ *     {
+ *       "res": "welcome",
+ *       "user": {
+ *         "uid": "123",
+ *         "name": "Some User",
+ *         "emailId": "someuser@example.com",
+ *         "type": "user",
+ *         "token": "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9..."
+ *       }
+ *     }
+ * 
+ * @apiError (Error 403) UserDoesNotExist Incorrect ID or password.
+ * @apiError (Error 500) ServerError Something is wrong on our side. Try again.
+ */
 
-// ------------------------------------------------------------------------------------------
-// Current Success.
-// ------------------------------------------------------------------------------------------
+/**
+ * @api {post} /auth/validateUser Validate User
+ * @apiName ValidateUser
+ * @apiGroup Authentication
+ * @apiDescription Validates the user's authentication token.
+ * 
+ * @apiHeader {String} Authorization User's authentication token.
+ * 
+ * @apiSuccess {Object} res User object.
+ * @apiSuccess {Object} res.user User details.
+ * @apiSuccess {String} res.user.uid User ID.
+ * @apiSuccess {String} res.user.name User name.
+ * @apiSuccess {String} res.user.emailId User email ID.
+ * @apiSuccess {String} res.user.type User type.
+ * 
+ * @apiSuccessExample Success Response:
+ *     HTTP/1.1 200 OK
+ *     {
+ *       "res": {
+ *         "user": {
+ *           "uid": "123",
+ *           "name": "Some User",
+ *           "emailId": "someuser@example.com",
+ *           "type": "user"
+ *         },
+ *         "msg": "user validated",
+ *         "err": null
+ *       }
+ *     }
+ */
 
-// ------------------------------------------------------------------------------------------
-// Current Errors.
-// ------------------------------------------------------------------------------------------
+/**
+ * @api {post} /auth/sendOTP Send OTP
+ * @apiName SendOTP
+ * @apiGroup Authentication
+ * @apiDescription Sends an OTP (One-Time Password) to the user's email ID.
+ * 
+ * @apiParam {String} uid User ID.
+ * @apiParam {String} emailId User email ID.
+ * 
+ * @apiSuccess {String} res Response message.
+ * 
+ * @apiSuccessExample Success Response:
+ *     HTTP/1.1 200 OK
+ *     {
+ *       "res": "otp sent to emailID"
+ *     }
+ * 
+ * @apiError (Error) IncorrectUidOrEmail Incorrect UID or emailId.
+ */
 
-// ------------------------------------------------------------------------------------------
-// Current Permissions.
-// ------------------------------------------------------------------------------------------
+/**
+ * @api {post} /auth/resetPassword Reset Password
+ * @apiName ResetPassword
+ * @apiGroup Authentication
+ * @apiDescription Resets the user's password using the provided OTP (One-Time Password).
+ * 
+ * @apiParam {String} uid User ID.
+ * @apiParam {String} otp One-Time Password received by the user.
+ * @apiParam {String} password New password.
+ * 
+ * @apiSuccess {String} res Response message.
+ * 
+ * @apiSuccessExample Success Response:
+ *     HTTP/1.1 200 OK
+ *     {
+ *       "res": "successfully updated password"
+ *     }
+ * 
+ * @apiError (Error) IncorrectOtp Incorrect OTP.
+ * @apiError (Error 500) UpdateError Something went wrong while updating password.
+ * @apiError (Error 500) ServerError Something went wrong.
+ */
 
-// ------------------------------------------------------------------------------------------
-// History.
-// ------------------------------------------------------------------------------------------