If you only zoomed your signature in the KCET application and your college verified the form with the unzoomed version, then it is likely okay and should not cause any issues; however, it's best to contact the Karnataka Examination Authority (KEA) to confirm if there could be any potential problems due to the slight signature difference.

Since your college verified the application with the unzoomed signature, it indicates that they accepted it as valid.

Zooming a signature slightly might not be considered a significant alteration, especially if the overall details remain the same.

ALL The Best!!