Minimo,
Have a look at these FAQs in the ICAO library:
http://www.icao.int/icao/en/trivia/peltrgFAQ.htm#22
You will see a section devoted to language and the background to the new regulations can be found in there.
In outline, as I understand it, each member country, for the purpose of licence issue, will be required to identify language proficiency in their "local" language, and for international operations, either a proficiency level in English or in the language used on the ground over which they fly.
I don't know what the French rules are, however, I suspect that the official language for non-international ATC is French and I expect that they will require a minimum Operational Level 4 in that language for commercial ops within France.
Sadly, no matter how well you speak English, if French is the official language then I think you will have to demonstrate a level of proficiency in that if you fly in France commercially.
Please bear in mind, this is my interpretation based on my understanding of the strengthened language proficiency requirements, and how the UK CAA are complying.
You really should speak to the DGCA.
Let me know if I can help you more.
tam