As an electrical engineer, who also got mba from one of the top business schools in pakistan: I can appreciate your plan, as in my experience C.As still somehow manage to secure very very good lucrative jobs in Pakistan (which i can tell you as a seriously unemployed person that this is very rare for any profession in our country to be called lucrative and well-paying)
I can tell you this: Accounting it self is quite dry, I don’t know about auditing portion in Acca or C.A
My knowledge in accounting is limited to my courses of financial accounting and managerial accounting in mba
But i would still rate studying accounting as a far far better option than engineering (because studying 4 years in engineering university is not leading to any jobs right now)
Other members are welcomed to share their critque or dissenting opinions