each option for yours takes you to different positions. since you are already in a corporate, if you wish to continue in the corporate field you may go with mba. Or civil+CA is a very rare and awesome combination, and you could enter into high positions in the Government. Practice is a good option as well, well exposed to different situations and to learn many things in a practical way. You may go according to your interest. May be all of your options are your interest, but talk to yourself to select one interest dominating others. Though I am just a Final student, I just shared my opinion. Sorry if I could not answer your question.