Who connects

Please to explain the connect.

Cracked by: p vs np , sidsen , udupendra , Raghuvansh , Johny Walker , Martin , Ps , vishal , darthshak , akhi , Vinay Nair , Jean Valjean , Debasish , Mitesh , shrik , ali and K.S.Manish.

p vs np, sidsen, udupendra, Raghuvansh, Johny Walker, Martin, Ps, vishal, darthshak, akhi, Vinay Nair, Jean Valjean, Debasish, Mitesh, shrik, ali and K.S.Manish