My mum is from Netrokona near Mymensingh and my dad is from Jamalpur..though both fall in the Dhakha division neither speak shodho.
It's sort of a mix, and I'm totally pathetic when it comes to speaking Bengali.
What are you? Rarely find people out of Sylhlet here.
Edit: Shubho Noboborsho! (I didn't know you can say Nababarsha too 😆...and I only learnt the greeting last year 😆)