SBI

Nationality: Candidate should be a Citizen of India.
Age:Candidates age should not be below 21 years and not above 30 years I.e candidates must have been born not earlier than 02-04-1986 and not later than 01-04-1995 (both days inclusive).
Relaxation in the Upper Age Limit to Reserved category candidates:
Upper age is relaxable by
(I) 3 years in the case of OBC (Non-Creamy Layer) candidates.
(ii) 5 years in the case of: (a) SC/ ST candidates. (b) Ex-servicemen (including Emergency Commissioned Officers/ Short Service Commissioned Officers) who have rendered at least five years continuous Military Service and have been released on completion of assignment (including those whose assignment is due to be completed within one year) otherwise than by way of dismissal or discharge on account of misconduct or inefficiency or/ on account of physical disability or have been released/ discharged on account of physical disability attributable to Military Service or on invalidment (c) Candidates who had ordinarily been domiciled in Kashmir Division of the State of Jammu and Kashmir between 1st January, 1980 and 31st December, 1989.
Educational Qualification:Candidates should possess Graduation in any discipline from recognized University or any equivalent qualification recognized as such by the CentralGovernment.
Note:Those who are in the Final year/ Semester of their Graduation may also apply provisionally subject to the condition that, if called for interview, they will have to produce proof of having passed the graduation examination. Candidates having integrated dual degree (IDD) certificate should ensure that the date of passing the IDD.
Read more:SBI PO Eligibility - Are U eligible?http://www.freejobalert.com/sbi-po-eligibility/11502/#ixzz4CL3l6MNX

Every bank has their own requirement. You must go contact the nearest SBI branch. However the following is what is commonly required -
1. Attested copies of documents for proof of age/date of birth and proof of residential address.
2. Passport size photo of the applicant, co-obligants and guarantors.
3. Copy of marksheets/degree certificates of previous academic qualifications.
4. Income proof/latest income tax return of parents/co-obligants, guarantors. (if any)
5. Details of collateral security alongwith valuation certificate of Govt approved valuer (if any).
6. Details/statements of Bank accounts held by the student applicant/co-obligant(s)/guarantors (if any) for the last six months.
7. Copy of Passport/Visa, cost of air fare (documentary detail) in case of studies abroad.
Hope this helps.