I don't have many Chopra friends, but many of Khatri friends from Rajasthan regard themselves as Brahmakshatriya and worship Hinglaj Mata as their kuldevi. Oberoi is also a Punjabi Khatri clan which you can check with but, as always, the best thing to do is to check with elders in your family and your relatives.

Kuldevtas and Kuldevis also differ in Gotras sometimes. Also have a check on that.