Hi,

You don't need to write JEE/SAT exam for admission in anna university as a CIWG student. Anna University has recently passed a circular that the online application registration process for the B.E course under NRI/CIWGC/FN categories for the academic year 2020-2021 will be available by June 2020.

Visit the University website often to get notified. Link for the University website is given below

https://www.annauniv.edu/cir/

I hope it helps.