The talks are likely to be wrapped up in another one month.
"The talks have been very hectic. There are a lot of fine prints that both sides look into. The talks will most likely take one more month," a defence source told PTI.
A team from Paris, led by Engineer-General Stephane Reb, director of the International Directorate of the DGA (General Directorate for Armament) of the French Defence Ministry had arrived last night.
"Today was the first day of talks. We hope to warp it up very soon," the source said.
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The French side is here thrice every month to carry forward the talks.
The Defence Acquisition Council had on September 1 given the go ahead for further negotiations for purchase of 36 jets that had got stalled due to differences over a variety of issues.
India's insistence on 50 per cent off-set clause, tweaking of weaponry technology and plans to set up two bases were among the sticking points that had cropped up during the talks that began after Prime Minister Narendra Modi announced the decision to acquire the fighter jets during his trip to France in April.
Modi's decision to buy the jets, citing operational requirements of the IAF, had given a boost to the modernisation plans of the air force as the original deal for 126 Rafale jets through a tendering process had got stuck for years.