Not up to the mark. Even having a great fantasy concept (more like horror-thriller genre), a great casting, with a great action director and sequence (I'm referring the climax, only) even having a good BGM (personally), this is still lacking something. Acting of Mohanlal and Prakash Raj and also the climax scene are the main best contents in this film as per my view.
Also I had this kind of feeling that some scenes in the film reminds me some old mohanlal movies (eg: identifying mohanlal in varanasi)
Anyway, this is an above average film, with a great concept but poorly executed.