Hello Vikram

Pre- exam - just go to through basics.

Reasoning - Give online test, it will also help you in main

Quant - Examples of R.S Agrawal

English - just read the newspaper or any news app.

For mains English, General Awareness,Computer they are scoring areas.

Computer - Limited syllabus so all the 20 questions will come from what you have studied. There are many sites who will help you.

General awareness - Go for affaircloud capsule of each month. They compile all the information in much better way although some not so important but they are the best in the business. Just read them twice/capsule. In the final days bankersadda releases a Ibps po capsule memorize it 90% have comes from that capsule.

English - Give mock test join any test series. Don't practice offline it doesn't help trust me. Practice online as much as possible.

Reasoning - Watch YouTube videos for it.especially for tricks In reasoning questions are neither difficult nor easy they are just time consuming. But they are easy to score. Don't get stuck to the questions move on(especially in this section).

Quantitative Aptitude - Only section where you can be 100% sure for accuracy. Do this part in the last 34-40 min. Try beginning from quadratic equations, then series and so on... min. 15 marks you can score easily even if you are weak.