Dear aspirant !

Hope you are doing well ! Sorry to say that but after three years of 12 class you can't give you improvement examination because it's a long time ,you should think of it earlier.You can only give your improvement examination only after a year of 12 class .Even how can you now think of it ,you have to satisfy now with your marks

Hope it helps you !!

Thanking you!!

Feel free to ask more query!!