Dear aspirant!

To clear the written examination of cda ota you have to do a lot of hardwork.You should a proper guidance.Have patience, confidence in yourself.If you fail do not loose hope try next time give your best ,ask yourself that this attempt was my best if answer is not then give your best,you should have proper source of books,notes etc.Try to write your own notes that will be best,watch toppers interview grasp the things from there!

Hope it helps you.

Thanking you!