French will be really benefitted more and above that.
Kaveri with 90-95kn will be a good candidate for tejas Mk1, Mk1a, Mig-29 and K and if possible Mirage 2000.
There are really very few countries that are planning to aquire rafale due to high cost, when a fifth gen plane with a lower price tag will be awaiting .
They have an eye on the low cost tejas where they want their presence to be able to get benefit.
Most who have high cash will go with F-35.
Small airforces want a low cost, low maintenance, multi role and better and a modern aircraft which is slightly future proof where Tejas and gripen stand out.
French are not at all foolish, since after kaveri engine is ready tejas price tag will be definitely be lower.
If there is a substantial contribution from the French in tejas, they will earn whatever money comes with rafale and will get a big bonus in the form of tejas sales.
Disclaimer : I really don't want to comment on the airforces which consider Chinese planes.