Book in train 12201 from LTT(lok manya tilak) to TCR(Thrissur)
By this way u can avail GNWL quota in CHAIR CAR.
Your ticket will be valid upto TCR(Thrissur), meanwhile you can get down at MAO(Madgaon Jn.)
With current availability WL15 on 27th which might just get confirm (considering 2 chair cars coach).
Select...
more... chair car(CC) as your class.This is the best you can do.
Good Luck.