Don't think RR has the engines for 110KN+. I guess it's an attempt to get India to invest in Tempest. IP workshare will be conditional to India investing and committing an number to Tempest jets. The rewards would be IP for 110KN engine when in fee years, 120-140KN engine will become an norm.
They are smart. India can invest if provided some workshare in Tempest design. But will lead to too much duplication. We have Amca, plus we aren't still out of FGFA yet, F35 whispers and now this. Britain wants to go back to tech glory days riding on India's money as if looting India wasn't enough.