i am in class 11can i pass iit jee-2012 without joining the class?from what should i start?if i start prepartion from 20 november how many hours in a day should study including study of 11,12 and iit jee?

Dear Prasad,

That perfect time to start the preparation... try to enhance all your concepts .. its the most important thing .. 

Study without loosing the concentration coz studying 2 hours with very good concentration is equals to studying 5-12 hours without any concentration. .  and  have a confidence in yourself.  

All the Best .