which is better option for any science student while selecting subject? now it is C -SAT so will it same like bank aptitude papers,or CAT pattern?

before the amendment in civil service paper procedure prelims was there in which one is general studies paper and is common to all appeared candidates and is optional subject paper as per choice if individual candidate but from may june 2011 csat is carrried out in place of preliminary test consisti

you are asking about Civil service exam or cat exam