This could also be discussed on the Malayalam Wikipedia village pump and/or the mailing list where the community can request the participants with a list of expectations. When a Wikimedian is awarded the scholarship on the basis of their own contribution to the larger movement, they do owe their own community the wisdom they would bring back from Wikimania.
I raised the issue of repeated scholarship last year, but only now I understood that the person who mentioned in that thread as a scholarship reciever, was not attended the Wikimania last year. That is the level of communication happens from the scholarship receivers.
But I personally don’t see this thread a fruitful one. Many from your own community might not be active here. While sharing this suggestion with I’m also thinking in my head that how we could engage with my own community so that they share such a wishlist. We tried to do it in the past but did not receive many comments. Maybe there is a way we can innovate. If we succeed, I will create a Learning Pattern, and share here. :)
It may not be fruitful now, but I think it is important to challenge a flawed system which give unjustifiable advantage to some.
Although I didn't participate any 'Wikimania scholarship application & rejection discussion' this year, I am sure that active users in ml.wiki community are aware of this repeated scholarship phenomena. Also this is not something a small community can control. After applying for scholarship, applicants are completely at the 'mercy' of selection committee.
As you know, Malayalam community is a small community, most people know each other in the real world. Even here in a mailing list of somewhat not-so-familiar people, it is very difficult to question a controversial selection process. You can assume how difficult would it be in an open place where everybody know everyone else personally.