Hello there. Hope you are doing good. I would like to tell you that there are good amount of opportunities abroad for this course. But if you want the position of boiler attendant, you need to obtain minimum 2-3 years of work experience in India first, then your profile will be considered abroad (in Canada). The basic or fresher profile for this course is Assistant Operator in steam boiler or Assistant fireman. You need to obtain some work experience in this field only then there are chances of you getting promoted.

I hope you found this answer helpful. Good luck for your future.