hey!

Yes, it is very good

Plastic engineering in india is growing drastically as plastic per capita income has increased in last few decades.
The field relates to the plastic goods manufacturing ,product design, testing, packaging  etc.

It has good scope as many of the daily items you used are of plastics

There are many job opportunities in the market as the gradually increasing plastic companies in india

As per the maths is concerned it is not that much but for graduation you will need the same maths as included in other engineering fields