CA with CS would be a Good Combination, also if you can Persue LLB ( not General but full 3 Yrs being eligible to take Sanat & practice in Courts ) with this it will be the best.
I should rather say do CMA.
And start your career from a good company as in Cost Accountancy work experience under a company (list is available in the institute's website) is counted and you also get know the corporate culture.
In 3 years you will be in a position where even if don't clear the exam you will have job.
And moreover you can give the final exam instantly after you Intermediate clearance.