Chhanda Gayen
Chhanda Gayen ( 9 July 1979 – 20 May 2014 ) was a Bengali mountaineer , martial artist , explorer , and teacher of self-defense . 
<triplet> Chhanda Gayen <subj> 9 July 1979 <obj> date of birth <subj> 20 May 2014 <obj> date of death