Hardly had the CBSE concluded its class 10 board exams on March 29th that the speculation on the date the results would be declared is on. Generally it is only a day before that the board announces the result date. CBSE has not confirmed upon anything. However, last year the result was declared on May 31st. The trend is that the results are declared in the last week of May with class 12 being declared a week earlier than class 10. Out of 31,14,831 students who took the class 10 exam this year, 28 were transgenders

Source: https://www.news18.com/news/india/cbse-class-10-result-2019-to-declared-in-may-check-for-details-here-2083621.html