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Thanksguest123 for inviting me to answer this quarry. The detailed rules for compartment in CBSE secondary Exam given as follows:
Eligibility for Compartment in Secondary Examination
A candidate failing in two of the five subjects of external examination shall be placed in compartment in those subjects provided he/she qualifies in all the subjects of internal assessment.
42. Compartment Examination for Secondary/Senior School Certificate Examination
** (i) A candidate placed in compartment may reappear at the compartmental examination to be held in July/August and may avail himself/herself of the second chance in March/April next year and may further avail himself/herself of the third chance at the compartmental
examinations to be held in July/August of that year. The candidate will be declared 'Pass' provided he/she qualifies the compartmental subject/subjects in which he/she had failed.
** (ii) A candidate who does not appear or fails at one or all the chances of compartment shall be treated to have failed in the examination and shall be required to reappear in all the subjects at the subsequent annual examination of the Board as per syllabi and courses laid down for the examination concerned in order to pass the examination. The candidate shall have the option to appear at the practical examination in the subjects involving practical or retain their previous marks in one more annual examination after the Third Chance Compartment.
(iii) Syllabi and Courses tor the Compartmental candidates in March Examination shall be the same as applicable to the candidates of full subjects appearing at the examination,
*** (iv) A candidate placed in compartment shall be allowed to appear only in those subjects in which he/she has been placed in compartment at the Second Chance Compartmental Examination to be held in March/April next year.
(v) For subjects involving practical work, in case the candidate has passed in practical at the main examination he/she shall appear only in theory part and previous practical marks will be carried forward and accounted for. In case a candidate has failed in practical he/she shall
have to appear in theory and practical both irrespective of the fact that he/she has already cleared the theory examination.
*** (vi) The candidate who is placed in Compartment in the Secondary School Examination (Class-X) shall be admitted provisionally to class XI till he takes in first chance Compartmental Examination to be held in July/August