Hello Rohan,
As Daniël mentions, this is a browser behaviour and not something directly related to OutSystems. However, you can try modifying your inputs to give browsers a hint that they should not enable this autocomplete behaviour for specific inputs.
You can do this by adding the autocomplete property with the value "off" to your inputs:
Keep in mind that this is just a hint, and it is up to browsers to respect this behaviour. You should have no issues in the latest versions of most common browsers (Chrome, Edge, Firefox). There's a good MDN page with more details here.