Ok, in the file linked earlier you can see that vx140 is different and it runs directly from sdcard not flash memory. So again, all that is required is the same folder structure as I explained before in the sdcard instead of internal storage. Instead of mmibe or whatever the folder is named, the structure should be sdcard-Mapmyindia-Mapmyindia_Navigator.exe
Have you tried this?

If that doesn't work you'll need to get hold of another vx140 and see the exact structure in the sdcard and replicate the same in your device. Replicate structure means replicate folder hierarchy and exe file name, not copy the original files.