Since HUJI and some of the other groups operate out of Bangladesh this could be the beginning of an international incident.
Yup, an unfriendly act, to say the least.
Google maps showing locations of 9 attack points
http://maps.google.com/maps/ms?ie=UTF8&hl=en&msa=0&ll=18.922445,72.832242&spn=0.007054,0.007864&z=17&msid=105055855763538009401.00045c9d8b16af3ad1008