The council had earlier announced to defer classes 10 and 12 board exams, which were to be held from May 4.
Class 10 students who do not appear in offline exams will be evaluated based on an alternative assessment method.
As per the ICSE (class 10) revised timetable, no exams have been scheduled on May 13 and May 15 due to "unavoidable circumstances".
The results are expected to be out by July.
In a notice, it has been mentioned that due to the persisting COVID-19 pandemic and its impact on studies throughout the previous year, the examination dates will be deferred.
The board had to cancel its pending exams in March view of the spike in COVID-19 cases and the result was declared based on an alternative assessment scheme.
Candidates will be assessed based on best three percentage marks obtained in subjects for which board exams have been conducted and the marks of their internal assessment as well as project work will be taken into account.
The CISCE had earlier announced a reduction of up to 25 per cent in syllabus for classes 10 and 12 board exams in 2021.
The curriculum committee will hold a meeting through video-conferencing on July 8 to discuss this and the restructuring of tests and extracurricular activities.
Onmanorama puts together a compilation of all the latest updates regarding key examinations in India.