diff --git a/components/lib/tristatecheckbox/tristatecheckbox.d.ts b/components/lib/tristatecheckbox/tristatecheckbox.d.ts
index 5178d5b44b..63905aff47 100644
--- a/components/lib/tristatecheckbox/tristatecheckbox.d.ts
+++ b/components/lib/tristatecheckbox/tristatecheckbox.d.ts
@@ -1,31 +1,111 @@
+/**
+ *
+ * TriStateCheckbox is used to select either "true", "false" or "null" as the value.
+ *
+ * [Live Demo](https://www.primefaces.org/primereact/tristatecheckbox/)
+ *
+ * @module tristatecheckbox
+ *
+ */
 import * as React from 'react';
 import TooltipOptions from '../tooltip/tooltipoptions';
 
+/**
+ * @todo Write the documentation.
+ */
 interface TriStateCheckboxChangeTargetOptions {
+    /**
+     * @todo Write the documentation.
+     */
     name: string;
+    /**
+     * @todo Write the documentation.
+     */
     id: string;
+    /**
+     * @todo Write the documentation.
+     */
     value: boolean | undefined | null;
 }
 
-interface TriStateCheckboxChangeParams {
+/**
+ * Custom change event.
+ * @see {@link TriStateCheckboxProps.onChange}
+ * @event
+ */
+interface TriStateCheckboxChangeEvents {
+    /**
+     * Browser event
+     */
     originalEvent: React.SyntheticEvent;
+    /**
+     * Current Value
+     */
     value: boolean | undefined | null;
+    /**
+     * @todo Write the documentation.
+     */
     stopPropagation(): void;
+    /**
+     * @todo Write the documentation.
+     */
     preventDefault(): void;
+    /**
+     * @todo Write the documentation.
+     */
     target: TriStateCheckboxChangeTargetOptions;
 }
 
+/**
+ * Defines valid properties in TriStateCheckbox component. In addition to these, all properties of HTMLDivElement can be used in this component.
+ * @group Properties
+ */
 export interface TriStateCheckboxProps extends Omit<React.DetailedHTMLProps<React.InputHTMLAttributes<HTMLDivElement>, HTMLDivElement>, 'onChange' | 'value' | 'ref'> {
+    /**
+     * Value of the TriStateCheckbox.
+     */
     value?: boolean | undefined | null;
-    disabled?: boolean;
-    readOnly?: boolean;
-    tooltip?: string;
-    tooltipOptions?: TooltipOptions;
-    onChange?(e: TriStateCheckboxChangeParams): void;
-    children?: React.ReactNode;
+    /**
+     * When present, it specifies that the element value cannot be altered.
+     * @defaultValue false
+     */
+    disabled?: boolean | undefined;
+    /**
+     * When present, it specifies that the value cannot be changed.
+     * @defaultValue false
+     */
+    readOnly?: boolean | undefined;
+    /**
+     * Content of the tooltip.
+     */
+    tooltip?: string | undefined;
+    /**
+     * Configuration of the tooltip, refer to the tooltip documentation for more information.
+     */
+    tooltipOptions?: TooltipOptions | undefined;
+    /**
+     * Callback to invoke on value change
+     * @param {TriStateCheckboxChangeEvents} event - Browser event.
+     */
+    onChange?(event: TriStateCheckboxChangeEvents): void;
+    /**
+     * Used to get the child elements of the component.
+     * @readonly
+     */
+    children?: React.ReactNode | undefined;
 }
 
+/**
+ * @group Component
+ */
 export declare class TriStateCheckbox extends React.Component<TriStateCheckboxProps, any> {
+    /**
+     * Used to focus the component.
+     */
     public focus(): void;
+    /**
+     * Used to get container element.
+     * @return {HTMLDivElement} Container element
+     */
     public getElement(): HTMLDivElement;
 }