Default bengali font problem!

Most probably it is the last post from HTC one max, if I will not be able to fix the problem then I will go back to my previous note 3 and will sell my present HTC one max. The problem is I can not see Bengali properly with HTC one max. though I can see the Bengali fonts but it is not properly organized. I can see Bengali properly by chrome browser but not able to see Bengali on htc stock browser and I am also not able to see Bengali on htc one max stock mail application. Though I am seeing Bengali fonts but not rendering properly!

Does anybody know how to fix this ?
Attached Thumbnails
Click image for larger version

Name:	Screenshot_2014-02-10-22-57-06.jpg
Views:	13
Size:	216.1 KB
ID:	2571262   Click image for larger version

Name:	Screenshot_2014-02-10-22-57-22.jpg
Views:	15
Size:	200.9 KB
ID:	2571263