Something that is supplementary or secondary to the main function.

An agent that acts as a support or assistant in a larger organization or system.

सहायक एजेंट

English Usage: The ancillary agent played a crucial role in the project’s success.

Hindi Usage: सहायक एजेंट ने परियोजना की सफलता में महत्वपूर्ण भूमिका निभाई।