I secured only a total of 20 in jee mains.ihave zero in physics.i am in o.b.c. category.can i hope for a good engineering college?reply me

My result is not yet declared.but iwill secure more than 75%. sir i want to clear i.i.t. by dropping this year.but my family says that it is not a wiseable decision.sir firstly tell me can i get admission with this dirty scores in good college with o.b.c. category.then give me adress of good i.i.t.