what is the criteria for getting admission in iisc?is the 12th board marks important

@ virangi 
iisc takes the student on the besis of the aptitude test , and also on the besis of kvpy fellowship , and also on the besic of jee advanced rank as well as on the besis of NEST marks . 
so, 12^th mark is imp also , beacuse then only u are elligible to sit in jee advanced , u have to stay in top 75 percentile . 
else , if u can qualify kvpy , then directly u will given admission in iisc . 
and also , if u will not get in iisc , u can try out ,
NISER , IISER , AND CDS – MUMBAI , 
all the best ..