Diploma

National Stock Exchange (NSE) offers wide range of banking courses through e-learning (training) of Initiatives Learning India Pvt. Ltd. /FLIP (www.learnwithflip.com). Few courses are of them are given below.
1. Banking fundamentals International (Under foundation module)
2. Banking sector module (Under Intermediate module)
The above courses of NSE Academy Certification in Financial Markets, or NCFM, programme is an online testing and certification programme that tests the practical knowledge and skills required to operate in the financial markets. The NCFM programme operates on our intranet and is administered through our designated test centers located across India. For more details please visit https://www1.nseindia.com/.

In my opinion, you must choose MBA Hons with focus or electives in Marketing!
Civil engineering is otherwise too most conducive for entrepreneurial ventures. Lovely professional university offer MBA Hons with Marketing electives. With your technical skills coupled with marketing and management you can start your own business. The entrepreneurship projects withing the programme itself will give you real time exposure too !
As per mu experience of 16 years in education, I feel entrepreneurship is something which can be great if you have combination of technical and management skills, Marketing to be more precise. You need to visit www.admission.lpu.in for full detail o eligibility, scholarships and selection process. Hope this helps
DVD.

Due to current situation (COVID-19), there is an uncertainty about admissions with international universities. It is not advisable to travel for at least year. Most of the universities have shifted their session to online till fall and once the universities are fully functional that too is expected sometime in December, the universities will give preference to local students.
There are some universities in India which offer international degree in India, you can consider them. IILM Undergraduate Business School, Lodhi Road, New Delhi offers international degree while students studies in India. The Undergraduate programs offered by IILM Lodhi Road are as follows :
BBA in Entrepreneurship
BBA in International Management
BBA with Psychology
BBA with Communication
These unique and interesting combinations offered by IILM Undergraduate Business School, Lodhi Road, provides you a foundation in developing a broadened mind-set through blended and experiential learning beyond the classroom through tailor-made created to give a deeper insight of the practical world. IILM Undergraduate Business School offers lateral transfers.