For masters (MBA), you need your bachelors to be cleared as a basic requirement and I agree with the path mentioned by @Borosil_Carrier .
Its a good idea to work on...... and there is no going back if you drop from your undergraduate course.
As we always get inspired by those we idolize as successful but there are thousands and lacs who get stuck and having your engineering degree might just help you sharpen your analytical mind which will come handy in your finance dreams.
Think over it and try connecting with a few people who have done engineering followed by finance and then take a call .
But speak to more and more people ... it like data gathering for your analysis (Financial world relies on it :)