Hello aspirant,
According to previous year's cutoff, the closing rank for OBC-NCL was 1602.
With your OBC rank being 309, I think you have a good change for AIIMS PG admission 2019.
Also, there are further reservation of seats and information about that can be checked at this site-> https://www.edufever.com/aiims-pg-cutoff/
Good luck!
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