Results of Madhyamik 2016 will be declared between 6th and 10th May. It is mandatory for the board to declare the results within 90 days of the completion of the examination. This year, Madhyamik examination commenced on 1st February, 20 days earlier than usual and ended on 10th February. Evaluation of answer scripts is almost over and the results are expected to be ready by 2nd May. But the board might not be able to declare the results before 6th May since the Assembly polls in Bengal will end on 5th May. In the year 2015, Madhyamik results were declared on 22nd May, 79 days after the exams ended. But this year it was not possible to maintain the same gap because several employees will be deployed on election duty.
Source: http://goo.gl/JrFFK1