Dear aspirant,Previously (till 2015) ,WBJEE Engineering decentralized counselling (spot round - if any seat left) was operated by each college /institution, individually. But now(after 2015) the whole process is maintained by WBJEE. Just like the previous year,there are 3 rounds of counselling, after that the spot round is done for those colleges having vacancy. As the whole process is online, there is no chance that someone would miss the spot round for lack of information. Those who want to attend the spot round would have the priority based on their ranks.

Hope this helps.