What is this dark brown organism growing on a door frame?
Termites.
Photograph the insects and we will try to identify further. If the insects keep running, freeze some. This could be a big problem, so get good information soon.
Online I see this article that might help.
&quot; An identification guide to the wood destroying termites of south India&quot;
Journal of the Indian Academy of Wood Science
ISSN 0972-172X Volume 8 Number 2
J Indian Acad Wood Sci (2011) 8:148-151
DOI 10.1007/s13196-012-0028-9