Hi,
I understand that its mandatory to work on the same field for which you get endorsed. lets say if some gets endorsed for digital technology, he/she should work within same domain. but how about specific solution? for example if someone gets endorsed for specific mobile app which is based on AI and helps resolve issue related to fintech. (just an example). is it mandatory that you should have worked on same app to get ILR after 3 or 5 years?