Hi Susmitha,

There are lots of way and books for preparing. But there is no different books for these exams.

1) The best source for practice are old papers if SSC, IBPS.

2)For practicing grammar, the best book is Wren and Martin.

3)Objective general English by SP Bakshi

4)Best book for improving vocabulary is Word Power Made Easy by Norman Lewis.

5)For Aptitude Test,you should try RS Agarwal.

Best of luck!!Thank You!!