hi,

you did not mention which course you want to take admission, however for engineering courses, you need to  apply in wbjeeb exam to get admission in jadavpur university. however if you are interested for bsc courses admission forms will be available on the month of june tentatively. you may also follow the below link to know in details,

http://www.jaduniv.edu.in/requiredfiles/display_notices.php?nc=Admission&type=l