I Vote for Track A! Started off very smooth and came out hard with 3-4 different tunes leading up to the lyrics (go hard, paper planes, various flute tunes). i liked the little interlude of "3, 2, 1...GO" and the beeping tune thing in the back. I think in little battles like this where you only have 1 minute to show your stuff, its important to do stuff like that to add hype and make your track more memorable. Tera yaar bolda did feel kinda thrown in there though.
Track B - A bit of an odd choice for the opening tune, that reggae sounding synth i mean. "My chick bad" didnt flow that nicely for me. I didnt like the stutter around 28sec, it ended a little too soon and the loud hiss/whoosh sound sounded a little harsh. The mixing after 46sec was nice though! Good use of Ajj nachna! and i like that 58sec onward you let the tune speak for itself, gives some closure to the track and makes it sound like a coherent song.
My Vote: Track A. keep it up both of you!!