Punjab National Bank is a public sector bank of India. It was established on 19th May, 1895. It is the 3rd largest bank in India.
It’s headquarter is situated in New Delhi, India.

Its products are
Credit cards
Consumer banking
Corporate banking
Finance and insurance
Investment banking
Mortgage loans
Private banking
Private equity
Wealth management

I am giving you information regarding the exam pattern and syllabus of PNB specialist officer exam
Exam Pattern:

Subject Questions Marks
Quantitative Ability 50 50
Reasoning 50 50
English 50 25
Professional Knowledge 50 75

All are objective type questions with multiple choices out of which one is correct.
Total time allotted is 120 minutes.

Syllabus:
Reasoning:-
Comprehension Reasoning, Venn Diagrams, Number Series, Coding and de-coding, Problem Solving Techniques, Statement & Conclusion type questions, arithmetic reasoning, arithmetical number series, non-verbal series, syllogistic reasoning, Seating Arrangements.

English Language:-
Synonyms, Antonyms, Sentence Error, Sentence correction, fill in the blanks, Comprehension & Cloze Test etc.

Quantitative Aptitude
Simplification, Average, Percentage, Time & Work, Area, profit & Loss, Simple & Compound Interest, Time & Speed, Investment, HCF LCM, Problem On Ages , Bar Graph, Pictorial Graph, Pie Chart. Date Interpretation is the section which have to be focused.

General Awareness
Indian Current Events, Banking, General Science, General Knowledge. Focus will be mainly on Current affairs of National & International news, Important dates, Current Science, Technology, Sports & Culture & Banking Sector. Some questions from Marketing can come in the exam.