2.0 basically revolves around the killings of the birds due to the radiations of the cellphones and that is the reason the antagonist Pakshi raja takes all the cellphones from India(or a part of it). But logically, he himself keeps all the cellphones with him and roams around with all the cellphones and its radiations, that contradicts the main concept of the movie!!!
The VFX in 3D is really well managed. The superstar RAJNI sir and AKSHAY sir both gave their best in their characters respectively.
I would personally give 2 of 5 to the movie 2.0!