About Bengali transcription
Bengali (বাংলা) is written in the Bengali script and spoken principally in Bangladesh and West Bengal. Subtitles generated here come back in that script, as ordinary written Bengali, ready to use in an SRT or VTT file.
Bangladeshi and Indian Bengali differ in pronunciation and in some everyday vocabulary, and the written form is common to both, so a transcript reads naturally either way. Bengali's conjunct consonants make it visually dense — two-line subtitle blocks are worth keeping short.

