Naina: The name itself is scary.
However the director failed to create the affect that Bhoot had created on the audiences.
Naina, I will say, has one of the best special effects in the indian cinema till date. However it lacked to create the spine chilling affect that bhoot had created.May be this type of roles have become a bit cliched.
Performance wise, It was great by Urmilla cause she fits pretty well with such characters. Others also did a good deed.
Story wise, Not so powerful or new.I found it to be a little common as portrayed in several serials and movies as well.
Conclusion: Worth seeing once atleast to appreciate the special affects.And the theme music seems to be pretty good
Also I feel watching these types of movies (horror or thrillers) at theatres does not give you the feel its intended to give cause there will be a guy sitting around you who will be passing comments every now and then trying to comfort himself from being scared to shit.Feel pity to guys like that