Now cut off is reduced to 81 for obc in jee advance 

Hello Sourabh, unfortunately this means that you have not qualified in the JEE(A). Now you can participate in JoSAA counselling but will be allowed to fill choices for NITs, IIITs and other GFTIs. If your JEE (M) score is good, you may proceed for joining those colleges. Also check if you are eligible for IIST Thiruvananthapuram counselling.