This aircraft doesn't even exist yet and you're already talking about feasibility of tech transfer agreements
? Slow down there.
Germany and France initiated this agreement to lessen their reliance on outside technologies, be they from Israel, the US, South Korea or elsewhere and to improve Euro-cooperation and R&D, not to mention to standardize equipment across the continent with missile, tanker, cargo, uav, mpa, and other programs also in the works as pan-European projects. These programs were designed to have input and funding from European countries, not those outside of Europe, India included.
Wait until the agreements bear fruit and remember, these are being designed to fulfill European requirements, such as replacing the Typhoon, Rafale and Tornado, adding a third party like India or Israel would change the requirements and go against the entire thought process behind this joint development program. Part of what's held up the FGFA has been differences between Russian and Indian requirements and that's a risk France and Germany already have between themselves, but would be magnified by adding another nation such as India.
Like with Meteor, once it bears fruit you may have an opportunity as an export destination, but joining the development is likely a non-starter just based on the criteria surrounding the development of the equipment these programs are designed to create.