Just go for RS Agarwal for all verbal,non- verbal as well as quant.
You may also solve Arun Agarwal for quant. LOD -1 only. No need to solve logical and DI parts. RS Agarwal is enough for cracking any aptitude test.
you should also concentrate on Java, C, DBMS,OS,DATA STRUCTURE for the technical aptitude..
All the best !!