Hello Biswadip,

Placement reports of any college are handled by the Placement Committee and the information is not supposed to be leaked or come out before an expected percentage of students have been placed on the campus. Before that, it won't be released. And apart from the members of the particular placement committee, no one gets to know the expected date as it depends on a lot of uncertainties. So kindly have some patience and wait for it. 

Hope this helps.