SBI

Dear Komal,
You need to pay the entrance exam fees through challan or online mode. You can transfer the amount from any bank account you have irrespective of which bank. You can visit the nearest SBI Bank and deposit the amount scan the Challan and send it to the college. Or, tell me more about the problem you're facing so I can suggest you better ways to make the payment before deadline.

You can consider following books:
Magical Book on Quicker Mathematics by M Tyra.Quantitative Aptitude by RS Aggarwal.SBI Clerk chapter wise Solved Questions- Kiran Prakashan for quantitative aptitude.

Yes, you can go for CFA. This is globally certified course offered by US. CFA basically means chartered financial analyst so this course is for finance field mainly. It will give further growth to your career.

Yes, it will assist you to crack PO exams, as the format to a large extent is same. You need to check on the format and try and cover up topics that are not part of the CAT curriculum.

SBI bank provide education loan for abroad studies. You can visit any nearby SBI branch to know the procedure.

Hello Abhinav, Its very good to know your interest in History. Its a very good subject that fascinates many students. Now as you are already employed, I suppose you would be interested in pursuing this study while continuing to work. Right? I would advise you to download brochure cum application form of IGNOU, the best distance learning university. You will find all information required in this brochure.