Hi Kunaal,
Symphony Elements enables developers to create forms with a variety of data input types for capturing information from an end user. One of those is check boxes.

Here is an example here:

The MessageML to create that is shown below.

<messageML>
  <form id="form_id">
    <checkbox name="id1" value="value01" checked="true">Red</checkbox>
    <checkbox name="id2" value="value02" checked="false">Green</checkbox>
    <checkbox name="id3" value="value03" checked="false">Blue</checkbox>
    <button type="reset">Reset</button>
    <button name="example-button" type="action">Submit</button>    
  </form>
</messageML>

Further information on Symphony Elements and check boxes can be found here:
https://docs.developers.symphony.com/building-bots-on-symphony/messages/overview-of-messageml/symphony-elements-1/checkbox

Kind regards,