Bhai G, casually it is OK, if you use to it then you are culturally influenced by it. If we talking grammatically it is a wrong practice to use English in Urdu at the university level as discussed in the thread your marks will be deducted.
Further, we are discussing influence and that is visible. Even we forgot many Urdu words and used English for support.
Wah now became WOW
Uf now became Ouch
On the other hand, Hindi is very strong in its basis, and don't think they are adapting other languages' words in it.