Mumbai

Hello,
I understand and appreciate your interest in pursuing computer science engineering from Mumbai. To assist you in choosing the colleges to pursue the same, kindly refer to the link below for more information on the colleges:
https://goo.gl/qiAAeU
I hope this answers your question to your satisfaction. If so, kindly upvote this answer. If you have any further questions, kindly revert.

You need a minimum of 600/800 in GMAT.

I will prefer you to do some degree courses also because in today's world degree is very important to get good job. And secondly, you can also do some short courses life event management and Vastu.

Import-export courses are available through certificate programs, as well as associate's degree and Bachelor's degree programs. Students majoring in international trade and commerce, importing and exporting, and international business will typically be required to take some courses in this field.
Some common concepts taught in import and export courses include:
Import and export laws
Customs regulations
International and domestic trade law
Shipping operations
Documentation
Tariff regulations

Hi,
You have to qualify MHCET or JEE exam to get admission in the following colleges:
Don Bosco Institute of technology
Veermata Jijabai Technological Institute, Mumbai
Mukesh Patel School of Technology Management and Engineering, Mumbai
Dwarkadas J. Sanghvi College of Engineering Mumbai, Maharashtra