Hello,

Let me tell you that if you are jee aspirant focus on that and if you are Olympiad guy then you should change your stream from engineering to B.Sc because if you would keep options then you would be having trouble .

Considering you are a one year dropper so you can give jee mains next year . May be 75% criteria will be introduced from next year  so you should have attained 75% in aggregate .

As per my view you won't be allowed to a college only through Olympiad.