To give students sufficient time between consecutive papers, the CBSE has released the schedule seven weeks before the exam date.
The Board said the exam schedule has been fixed in a way that it doesn't coincide with the dates of competitive exams. Last year, the Board had to reschedule the Class 12 physics paper because it clashed with the JEE Main exam date.
"While preparing the date sheet, the admission schedule of Delhi University has also been considered," said Dr Sanyam Bhardwaj, Controller of Examinations.
The CBSE offers 40 vocational subjects in Class 12 and 15 in Class 10. The exams for vocational subjects will be held earlier.
Exams for core academic subjects will begin in March. Out of 240 subjects it offers, this year students have opted for 30,000 combinations of subjects in both the classes.
Results will be declared by the first week of June, Bhardwaj said.