Dear Aspirant,

It is not wise to do polytechnic not because of the age factor but because of a steady decline in engineering jobs. If you are sure that you'll be able to fetch a government job, then go for polytechnic, if you are unsure, then don't.

You could go for some private diploma if you think that you're going to do hit and trial. 6 year gap is also a very big hindrance in you getting a job as most of the companies don't allow gap of more than 3 years.

Your situation is a tough one, so only do what you're sure of. Don't experiment.

Hope this helps. Thank you.