I am a lil weak at accounts..could i do ca..???or plz suggest some other courses?

You can certainly take some professional help from the coaching classes or private tutors which will help you build on your accounts.

Nevertheless,if you think that accounts is something that you wont be able to cope with then,there are other careers that you can consider.

You can look at following careers:
Investment banker
Venture capitalist

Its advisable that you go through the information on these careers (like scope,remuneration,benefits,opportunities,career map etc) on http://www.youngbuzz.com/careers/careerprofile

This will surely help you understand these careers.