Hello Vinay,
That would entirely depend on your personal aptitude. If you are an analytical, in-office working kind of person, you'll like CSE. If on the other hand you like the outdoors and architecture, you'll like Civil.
From a financial or entrepreneurial point of view though, CS has more opportunities. Tech startups are highly profitable, and if you want to work for someone else, companies like Apple or Google pay hefty salaries.
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