Hello Kannan,
I acknowledge your concern and I am here to help you regarding that !!
So, as per the question, both are the same and if differs with the colleges with the name and branch they specify. And you'll have difference between petrochemical Engineering and Petroleum Engineering, but not between Petrochemical Engineering and Petrochemical technology. In petrochemical Engineering, everything is based on downstream processing. You can find employment in Pharmaceuticals, plastics and resins, agriculture, etc.., and coming to the fee, it will vary from college to college and it totally depends on the one you choose.
Refer these links below for more information,
https://www.careers360.com/petrochemical-engineering-course
https://engineering.careers360.com/colleges/list-of-petrochemical-engineering-colleges-in-india
Hope it helps !!
All the very best !!
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