While looking for materials to learn Hindi i've stumbled on this japanese site http://el.minoh.osaka-u.ac.jp/flc/index.html and felt complied to share it with all of you.It offers lessons with full audio recording of rarer less studied languages such as hindi, urdu, swahili, mongolian, persian, youruba, marathi and etc.Sadly the site is only available in japanese so if you can make use of the language どうぞ