As you have asked about the Bangladesh Public Service Commission (BPSC) Non Cadre examination pattern, I am giving you information about it, check below for the details

For the recruitment of non-cadre gazetted class-I and class-II officers two conventional recruitment processes are followed.

Preliminary Test is if the number of applicants is more than or equal 1000;
Written Examination; and
Viva Voce

Written Exam (Technical Posts):

Subjects

Bangla
English
General Knowledge
Technical Subject

Written Exam (Non-Technical Posts):

Subjects

Bangla
English
General Knowledge
Mathematics and Mental Ability

Marks distribution for Non Cadre class I and class II Viva Voce:

Subjects
Marks

Class I (Technical and Non Technical)
100

Class II(Technical and Non Technical)
50