Is it possible to define and change text-template inside a scene.

I am using Bangali language and Tikz images. While writing latex part in texstudio, both are working fine. However when runnig through manim, pdflatex is showing correct tikz drawing, but i cannot use Bengali language there. Xelatex is prducing correct bengali font, but through manim, its Tikz images are getting jumbled. Is there any way i can chose which part of the Tex will be run through tex-template and which part will be run through ctex template? I was trying to define a variable for that, but couldn’t make it work.