What's with the white master stuff? The Europeans (UK and Germany) spent time and money getting the turbine jet engine from idea to reality. UK and US, then France developed the turbine engine further. They have the technologies they have due to investing many, many, many billions of dollars. Other countries that chose not to invest in developing jet engine technology have no entitlement to that technology. GE, P&W, RR, SAFRAN are not in any way obliged to pass their technology on to other companies.
UK opted out of the launcher business many decades ago. If it decided to build launchers again, does it have a right to expect India to share its launcher technology? Would India be some kind of villain if it said no?