Hello Mahasweta,

Registration for csab nuet 2019 is expected to available  in in between third week of june to first week of july 2019.

For more details please visit our website where there is detailed information about this and link for which is here

https://www.google.com/amp/s/engineering.careers360.com/articles/csab/amp

Feel free to ask more doubts and queries in the comment box below