Hi

Best course depends on your interest. What fascinates you more.

You can study in abroad(Selected countries) after polytechnic diploma in ME

Polytechnic diploma is not counted as a PG or UG degree, you have to opt for one or two year courses abroad then you can join for any PG degree available in the same country.

Although, it depends on what basis you are choosing the courses and on which country you want to study.

You can visit any of the best consultancy for more details about courses in different countries.

Anyways, All the best.