here is a piece of advice if you are confused whether to go for CA or CS. my suggestion would be best you start by writing CPT. if you clear CPT it will be accepted as CS foundation as well and you will get enough time to make up your mind to select which one among them. the major difference between CS and CA is that CA is more of practice intensive whereas CS more of theory intensive. by popular poles it can be found that CA is more difficult and has more intricate subjects then CS.
but both are difficult and both are easy. it is just your level perception and preparation. all the best.
which ever may be,CS or CA, it as it's own specialty ,like in CA, practical is in depth and theory is reasonable less .where as in CS ,law is blood and life of company Secretary, so if u r good at theory then opt CS or good at practical then opt CA