Neither Deobandi nor Ahl e hadis have any relation with sunni sect. There is a huge difference between sunni and their belief. Basic point of difference is respect for prophet, sahaba and aulia e karam. I would not go in detail as lil baji already mentioned that such discussion is not allowed here.
If you want further info, contact me, my email id is provided in my profile.

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Guide us on the straight path;
the path of those whom You have blessed.