Hi Candidate! Aspirants who have completed the basic registration but have not generated unique code till date will be given another chance to generate the code.

The facility for Generation of Code will re-open only once from 23rd February 2019 to 12 March 2019 (up to 5 pm)

Check the details- https://www.aiimsexams.org/pdf/addendum%20No.5%20_MBBS_Jan19.pdf

I hope this information has helped you!