The Robust said:
Dear I am not Bangladeshi citizen I was there for 9 months on a project. now I am not getting any help from those people and I don't know who to contact
I realize that, neither am I. I had to (try to) get one for Bangladesh even though I hadn't been there for 20 years. I still had one former colleague willing to try and help, but it did not go well, dragged out for over two years, and I would not recommend this unless you had a friend in high places.
That's why I suggested looking for a legal service or lawyer. If I can google "Chittagong lawyer" I am certain you can too.
Alternatively - Try contacting your embassy in Dhaka. It is not their job to get a PCC for you, but they might have some useful information or tips. For example, the US Embassy in Dhaka has a list of lawyers -
https://bd.usembassy.gov/u-s-citizen-services/local-resources-of-u-s-citizens/attorneys/
In my case, I kept contacting the embassy until someone there took pity and on their own intiative (and time) did me a huge, huge favour. I am not suggesting that will work for you. But you might get some good info or advice.
Don't ignore the importance of contacting the High Commission in Ottawa. In the worst-case scenario, if you cannot get the PCC, you will have to make a plea for an exception, and you will have to document and provide proof that you tried everything (short of getting on a plane to Bangladesh). I had to ask for an exception for a different country ...
