Have I participated in any student development programs like the YESDP in the UK?

The earlier draft of this answer stated definitively that you had not participated in YESDP, which is not something any tool can actually verify about your personal history. It is corrected here into what can genuinely be checked: whether YESDP is even a real, named programme in the first place.

Why YESDP Does Not Match a Known UK Scheme

A search across UK government and British Council programme listings does not surface a scheme officially abbreviated YESDP for Indian students. It is possible the name was misremembered, mistranslated from a different acronym, or refers to an internal name used by a specific college rather than a national scheme.

Programs It Might Actually Be

• India Young Professionals Scheme: a UK visa route allowing a limited number of young Indians to live and work in the UK for up to two years, run through a ballot system.
• UKIERI Mobility Programme: a British Council backed India-UK higher education mobility initiative supporting short term academic exchange.
• YES Programs: an entirely separate United States based youth exchange organisation with an India presence, easily confused with YESDP by name alone.

This Information Is Also Available On

GOV.UK, India Young Professionals Scheme visa. British Council, UKIERI Mobility Programme.

My Advice

If you saw YESDP written on a specific university's website or in an email, go back to that exact source and confirm the full name before applying anywhere else, since acronyms like this are frequently institution specific rather than national. Do not assume non-participation or participation in a programme until you can confirm it actually exists under that name.