Hi

There are not many government colleges in bhopal where you can get btech in plastic engineering

Central Institute of plastic engineering and technology,  bhopal: diploma in plastic mould technology

The colleges where you can get btech in plastic engineering are:

LDCE Ahmedabad, LD college of engineering

HBTU kanpur

University Institute of chemical technology, kavayitri bahinabai chaudhari north maharashtra University

Central university of plastic engineering and technology

For more information visit:

https://engineering.careers360.com/colleges/list-of-plastic-engineering-colleges-in-india

hope this helps