Hi, i need the instrumental version of the sound of সঙ্গীত soundtrack, anybody knows where i can find it? Thanks

I don't know if such a soundtrack is available on its own but আপনি can check out the Robert Wise DVD commentary. It has the সঙ্গীত track without the গান গাওয়া (like karaoke). The commentary is intermittent and he doesn't speak during the music, so it may be what you're looking for. If it স্যুইটস্‌ your purposes, আপনি could extract the desired DVD audio track (with a program such as FlaskMpeg) and then do what আপনি like with it (e.g. divide it up into tracks of your choice).
Also note that the 40th Anniversary Edition CD available in the UK (e.g. মর্দানী স্ত্রীলোক UK) has extra orchestral tracks not included in the US version, such as the My Favourite Things/Salzburg montage.
Hope this helps! :)