Hello neeraj

Well,it's not possible to say the rank right now based on the percentile because it will dpend on the number of students giving exam in january as well as april.Hence,NTA will release AIR only after the april session of mains.Therefore,I would say to wait till april.But 89 percentile is not bad and I guess will surely qualify you for advance.To say the exact rank now,is very difficult.

Good Luck.