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A polytechnic college by definition is an institution offering Higher education in a wide spectrum of subjects which are predominantly technical in nature……A great majority of polytechnic colleges offer polytechnic diplomas and courses in vocational and technical subjects. It depends upon the individual & on how developed are his mental faculties.so cannot give a general answer that this is harder than that. All courses are equal & hard or easy depends upon the student. Both are equivalent in terms of technical exposure.
Salary for polytechnical courses: Government Polytechnic salaries Employees earn an average of 18.5 lakhs, mostly ranging from 5.1 lakhs to 50.0 lakhs based.