Can I appear for KVPY SX,if I had dropped one year after 12??

Hello aspirant,

You can't appear with SX stream, if you have already passed class 12th.
The eligibility criteria for SX stream is as follows,
Stream SX: Students enrolled in XII Standard (Science subjects) during the academic year 202122 and aspiring to join undergraduate program in Basic Sciences (B.Sc./B.S./B.Stat./B.Math./Int. M.Sc./Int. M.S) during the academic year 2022-23.
The fellowship of the students selected under this stream will be activated only if they join for an undergraduate course in Basic sciences (B.Sc./B.S./B.Stat./B.Math./Int. M.Sc./Int. M.S.) in the academic year 2022-23 after having secured a minimum of 60% (50% for SC/ST/PWD) marks in aggregate in MATHEMATICS and SCIENCE subjects (Physics/Chemistry/Biology) in the XII standard Board Examination.

For further details related to KVPY go through following link;

http://www.kvpy.iisc.ernet.in/main/eligibility.htm

https://www.google.com/amp/s/school.careers360.com/exams/kvpy


Hope this helps!!
All the best!!