Hello,
Class 12th improvement exam application form will be out most probably from last week of October or first week of November 2018.You can find it in CBSE's official website:
http://www.cbse.nic.in
Good luck.

Hello,


The forms for the CBSE Class 10 & Class 12 Improvement exam will probably be available during the last week of October.
You will get to know that the forms are released in the Recent Announcements section of the CBSE website so kindly stick to them to be notified.

I hope this helps.