Don’t worry I will let you know Bihar Public Service Commission, Pre exam details and last dates to fill the application form so that you can get idea.

Tentative dates
Event Date Detail
2nd week September, 2017 Notification

Last week September, 2017 – 1st week December, 2017 Application Date

3d week January, 2017 – 2nd week February, 2018 Admit Card Download Date

2nd week February, 2018 Exam date

Here is the syllabus
BPSC English Syllabus:
Spotting the Errors
Antonyms and Synonyms
Filling in the blanks
Use of prepositions, idioms/phrases
Word analogies
Test of spellings
Re-arranging jumbled up sentences
Comprehension of passage and answering questions based on the passage

BPSC General Knowledge Syllabus:
Current events of national and international importance
History of India and Indian National Movement
Indian and World Geography
Indian Polity and Economy
General Mental Ability Questions

BPSC Math Syllabus:
Algebra
Linear Algebra
Calculus
Trigonometry
Analytic Geometry
Ordinary Differential Equations
Dynamics, Statics and Hydrostatics
Vector Analysis
Real Analysis
Complex Analysis
Partial differential equations

Eligibility
Age
Applicants who want to apply for BPSC exam should be in between minimum 19 years to 24 maximum years.

Education
Aspirants must have a Graduate Degree in Mathematics/ Chemical Engineering/Civil Engineering/Economics/ Geology/ Natural Science/ Mechanical Engineering.