I'm currently doing bcom final year in kerala.i am confused that which course should i take in post graduation.so pls help frnds.....

my interests are in
1)software engineering(m.c.a)
2)ethical hacking
3)information technology
4)m.b.a.

so which course should i take...i like computer related field much...pls tell me the scope of each 1 above....
i need a field which gets good salary in india and abroad.

regards,
shyam