Hey ankur,

As per my information the b. Tech courses in bihar engineering colleges is offered to students on the rank or score in jee mains. The exam which you are talking about "BCECE" Was cancelled in 2019 i.e, last year itself.

So, now the admission are totally based upon your jee mains scorescore or bihar Ugeac. For more information about ugeac exam please refer to the article mentioned below using the following link:-

https://www.google.com/amp/s/engineering.careers360.com/articles/bihar-ugeac/amp

Hope it helps.

Good luck.