Hello,
After the basic registration, AIIMS would send a confirmation mail if they have accepted and selected your application. If you are unable to generate the RUC, login to the AIIMS website, fill all your credentials.
You would find an option to generate the RUC. Then fill in all your details. Then you would receive an email or SMS from AIIMS.
If you are still unable to generate the RUC, you can go for basic registration again.
Good luck.
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