Yes you are eligible for NID admission. The criteria for Bsc graduate states that you must have Bachelor degree of minimum 3-year duration in any specialization, after 12th standard or equivalent to 12th standard. Condition: you must have passed the Bachelor degree examinations before June 2019.
CEED is a centre-based exam which will be conducted January 17, 2021. For applying in the entrance exam you must fulfill there criteria set.
Aspirants have to complete a 3 years degree/ diploma /postgraduate degree programme (after 10+2 level) or
Candidates who will appear in the final examination in 2021 of a 3 years degree/diploma/ postgraduate programme can apply for CEED.
For more details view the following site:
As per the official statement goes for CEED 2021
“Candidates must have completed a degree / diploma / post graduate degree programme of minimum 3 years (after 10+2 level), or must be appearing for the final examination of such a program by July 2021, or must have passed the GD Arts diploma programme (10+5 level) by July 2021″
Since they are specifying 3 years after ( 10 + 2 level)
so, you are eligible to apply.