​Before choosing the books for preparation, you have to decide whether you are going to buy book only for postal exam or to prepare for other exams also.
1) PAPO - Postal Assistant in Post Offices: Once you get into the job you will be posted in Post Offices and had to work in counter. All of you might have visited Post offices atleast once to send a Speed or Registered article no? The person who sits in the counter and helps you in booking the article is one such a Postal Assistant. The benefit of PAPO is that you can regularly come across many customers and will always be updated with the latest changes happening in the Post Office environment.
