if i clear jee mains 2015 and get into NIT then after 2016 cai i write advance exam parallel to my Btech pursuing in NIT??

HELLO SHARATH

IIT AND NIIT DOES NOT GIVES ADMISSION UNTIL DECLARATION OF RESULTS OF MAINS AND ADVANCE EXAM.ONE SHOULD CLEAR BOTH MAINS AS WELL AS ADVANCE EXAM FOR ADMISSION TO NIIT. AFTER BOTH THESE EXAMS IIT GIVES RANKS TO STUDENTS ON BASIS OF THEIR PERFORMANCE AND THEN FINALLY ADMISSION ARE STARTED

THANX AND PLEASE APPROVE MY ANSWER.

FOR MORE INFORMATION REFER THIS LINK

http://www.askiitians.com/iit-jee/advanced/