Yes but that doesn't mean they can't be repainted now in line with the IAF's now standard grey.
Of course they can and only because the one upgraded in France aren't doesn't really mean they couldn't be repainted when their back in India. But has it importance at this stage? Doubtful! The M2Ks in France are the first to get this upgrade and as we know they get a lot of custom systems asked by IAF, so Dassault has to fit and test them, then train HAL how to do it on their own. Do you really thing painting them in grey is on their mind now?
The grey once of DGA btw, are not really service versions if I'm not wrong, the Air Force versions used in Libya had different camos too.
