if you r trying in delhi then vidyamandir is bit more better than fiitjee.
vmc(vidyamandir) will select 100(all india- for regular classroom) 12th pass through it test to be on 15th june.
for kota you may prefer vibrant. it is newly opened by some bansal teachers 3-4 yrs back and has got very good results.
their test is on 13 th june.
you may check for resonance in kota also.(test around 14 june)