Bamboo flute is a most important musical instrument. There are different types of flute made all over the world.some flute’s name are Xiao, palendag, dizi and jinghu.It is most common in India and china. Now I say about the learning process of bamboo flute. It is not so easy but if you practice most then it will be so easy for you.
If you not played a wind instrument before then it is few difficult for you. Before the fingering on the hole it is most important to get the sound perfectly through the flute. If you get the sound perfectly through the flute then you can try to learn the fingering on the six holes. Now I refer you some helpful sites to learn bamboo flute. These sites are given below,

http://www.knowyourraga.com/bansuri/lessons/

http://www.mcgee-flutes.com/keyless.html

http://www.anubodh.com/Fingering%20full/Inter_Fingeringchart.html