See PO is not a bad job anyway in any Public Sector Bank..
1- You will be placed with atleast 23000+ salary ( Though not very attractive in comparison with Pvt sector but still ok if you see larger picture)
2- You have a good chance of being promoted as AGM after 15 years of service ( AGM is a High Ranking post , you will also get promotion meanwhile like JMG-II to JMG-III after 4-5 years,\; anyway your salary will increase to at least 40% just after completing probation period)
Apart from Banking you can prepare for SSC graduate level examinations. They place candidates in CBI,CVC, CAG, Income Tax, Indian Postal Service, Custom and Excise etc as Non- gazetted Class B oficer with starting salary of 26000+ ( if varies according to your grade pay like gp of 4200 will earn 2000 less than those having gp of 4800)
Further If you are interested you can try your hand in Civil Services.... Nothing cant match it but ofourse its tough
By the way did you appear in any examination yet?