Sir/Mam, 1. If very intelligent student want to do IIT to become astronaut, then should he do- (a) CBSE in 9,10,11,12 Class. (b) IGCSE in 9,10 and then 11, 12 by CBSE? (C) IGCSE in 9,10 & IB in 11,12. 2. If financial condition does not permit to go abroad for graduation then in India IGCSE is recommended or not? If yes, why it will be better then CBSE? is igcse board recognised in delhi university.. if i do my IB m i elligible for AIEEE or any competitive exams? plz reply