Require Guidance about Career

I had done M.Com,D.F.M,  GDC & A(Government Diploma in Co-Operation & Accounts).I have 9 years experience (Including CA articleship).Now  i am working in one of the MNC(Service Provider Company)Now my Yearly CTC is Rs.3,50,000/-.My overall experience in Taxation(IT,Sales tax,Service tax) & routine accounts(Handling Branch Accounts,Export Related).

I want to have salary around Rs.5,00,000/-.Please advise me in which area I should concentrate or should i go for Fast track MBA.