Free bengali fonts download
Click here 1 (http://www.ekushey.org/index.php/page/otf_bangla_fonts)
Click here 2 (http://scriptsource.org/scr/Beng)
Click here 3 (http://www.omicronlab.com/bangla-fonts.html)
Click here 4 (http://www.nongnu.org/freebangfont/)
Click here 5 (http://banglafont.com)
Extra (http://www.wazu.jp/gallery/Fonts_Bengali.html)