You have taken a really good decision of preparing for the IBPS SO exam. If you are dedicated enough then, believe me, you can easily clear the IBPS SO exam with self-study. Now what you have to do first is to make yourself well aware of the exam. You must read each and everything carefully, from eligibility to exam pattern.
After that you must have the following books for IBPS SO 2018 on your desk for your preparation:
1.For Quantitative Aptitude
2. For Reasoning:
R.S. Agarwal will be more than enough for the Reasoning part.
After that, you must join a test series to practice more and more questions. Along with this, make a habit of solving previous year papers of the IBPS SO Question Papers. Hope this will helpful..!!
All the best..!!
IBPS SO books for self study