New Delhi Generally send PP, Medicals & RPRF in one go. why in your case ND is demanding in bits & bytes
Well, when I got medical request, it was also accompanied by a request to update child passport photo, which effectively means a new passport which took some time. I suppose the visa office knew this would be the case and therefore didnt ask for passports at that stage. I was also asked for a couple of other doc clarifications. Maybe they wanted to review this info before making the passport request. And yes, I'm the only ND applicant I can see on the forum who did not get PPR with medical.
RPRF btw is provided at full docs to visa office stage itself...