Hi Koushik,
to clarify:
as infotype 0024 is for qualifications, not trainings I assume you are not using infotype 0024, but integration with Personnel Planning and Development is active and you use the screen called via dummy infotype number 0024 as a short cut to view profiles.
It is not clear what you are referring to with planned trainings. Is this part of a development plan? Or actual bookings on actual trainings?
In any case: none of those will magically change status, unless you run some program based on the right config or change it manually. Where should that change come from?
I think, if there's really an issue, it would be best if you get a colleague who knows a bit about HR data and ideally about your bespoke configuration context and if he/she doesn't know the answer, you can sharpen this question much better, so the community can actually give you a relevant answer. I'm afraid this is far too vague to give a meaningful answer - it will all be speculation.
kind regards
Sven