hi chan,

the jee main exam has already been conducted on april 8th 2018. the ranks of paper-I have been declared on april 30th 2018 and results of paper-II have been declared on may 31st 2018.

If at all you were asking about the counselling of jee mains;  the counselling is declared  to be starting on june 15th 2018 onwards.

hope the information was helpfull

all the best:)