Dear Aspirants ,

No need to appear compartment exam twice in a year . Compartment Exam are held for Class 10th and Class 12th after result declaration every year. The board has given a chance to students who were not able to pass the examination. Because nobody wants to repeat the same class.  But as per cbse compartment guideline a candidate can appear for three subsequent chances of compartment examination in class 12th i.e. if a candidate appears for 2020 main examination and placed in compartment then he/she can appear in July the same year, Second Chance in March/April and third chance in July of 2020. So its overall 3 times chances given to aspirants .

Hope it will helpful

thanks