On gloss:

xurdo
x1 reflects Urdu language/culture/nationality in aspect x2.
kisybau in sense "'national' language of Pakistan"
k1=b1 is the Pakistani Urdu language used by b2 to communicate b3 (si'o/du'u, not quote)
xurbau in sense "language"
x1=b1 is the Urdu language used by b2 to express/communicate b3 (si'o/du'u, not quote).

In definition:

bangurudu
x1 is the language with ISO 639-3 code “urd” (Urdu).

In notes:

xindo
x1 reflects Hindi language/culture/religion in aspect x2.