Its not a Nimzo-Indian, its a kings indian but e6 for black is not normal in kings indian.
What Nimzo is this

It's not a Nimzo...black's ...g6 & ...e6 are unusual, maybe an irregular opening classified under A00, unless you continue with ...c5 the next move & after white d5 it transforms to Benoni !

It's not a Nimzo-Indian : the key move of Nimzo is 3...Bb4, pinning the white knight to control e4.

first as everybody said its not nimzo for sure....its little bit tricky , black deviated from the normal move order , now he is building whats called KING'S INDIAN--BENONI HYBRID STRUCTURE , just delaying to play ...c5 , it may continue as BENONI SYSTEM if later on white played d5 exd5 then exd5 or modern benoni if d5 exd5 then cxd5 there is a good book in the subject 'STARTING OUT BENONI SYSTEMS" WHICH DOESNT CONTAIN MODERN BENONI as a repertoire for white against this system
What kind of Indian is this.