[owaislone]

To some extent but not really. At the street level, it is very much possible for a Hindi and Urdu speaker to talk to each other and not realize they are speaking different standard languages. Spoken Hindi and Urdu are almost identical except some vocabulary which is also interchangeable in day to day use.

If you speak Italian to a Spanish person, they might be able to understand quite a lot but they'll know that you are speaking Italian. This is not always the case with Hindi and Urdu.