Maths

1. Khairul's Basic (Bank + BCS Preli. + Others)
2. Khairul's Advance (Bank)
3. Khairul's Mental Ability (Bank + BCS Preli + Others)

Bangla

1. Class IX-X Board Grammar Book (All Jobs)
2. অগ্রদূত বাংলা / শীকর বাংলা ভাষা ও সাহিত্য / বাংলা ভাষা ও সাহিত্য জিজ্ঞাসা (All Jobs)

English

1. Master by Jhangir Alam (All Jobs)^[1]
2. An ABC of English Literature (BCS Preli)
3. Saifur's Student Vocabulary (All Jobs)

IT

1. Cloud IT by Nipu (IT Related Jobs MCQ + Written)
2. সেলফ সাজেশন বেসিক কম্পিউটার ও তথ্যপ্রযুক্তি (BCS Preli. + Bank + Other Jobs)

General Knowledge

1. Basic View by Md. Nayeem Hossain (All Jobs)^[2]

Others

1. You should by and read "Current Affairs" in every month.
2. Should read some news from Editorial and Opinion Page of the Daily Star.

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1. But if are weak in English then buy English Tutor by Kabial Noor ↩︎
2. For general knowledge "Basic View" is not sufficient. You need seperate books and many more books. But you can start form it now. ↩︎