Dear Aspirant,

   Congratulations! on getting 82 .60% in CBSE class 12th,Your have performed fairly well in your board but you have lagged behind in your JEE , you scored 51 , with this score you cannot get into any NITs, IIITs or any government Engineering colleges but there are some good private engineering colleges that offers good placements.If you are really looking forward to appearing  JEE main again then you can go for but most of the time students fails to perform that well even after taking another year of preparation.So, take your time and think wisely before taking any decision.