That's it I think for the effect itself (will have to check), the display in the interface also requires changes in CvGameTextManager.cpp.Which files contain the code of the Indian UP? I saw CvCity.cpp is one of them. Is this the only one?
How did you unpack the fpk? Did you get a folder which is called "art" and contains several subfolders containingvall art files? This because you have to pack a folder and I only see an fpk file in the left box (input folder).