During the climax scene, a massive circular multi-gun shootout is held in a no-exit arena which had 80,000 people in it but no fatalities or casualties are shown.
The aura of the antagonist is captured in an energy containment. Keeping in mind that the aura could destroy entire humanity, very mild protection was given to it and another antagonist steals it very easily.
At [00:29] of it's official trailer. You could see the fictitious Microsoft Lumia 360 poster outside the mobile-showroom (in top-left corner).
In Enthiran, the last scene shows year 2030 where Chitti is dismantled in the museum. That is 20 years in the future. But this movie movie is set in 2018 and we see that he got accepted for Military purpose. It doesn't make sense.
A swarm of cell phones covers the road for about half a mile, goes into a person's house and kills him. The next day, the investing officers say that there are no proofs convincing the fact like that there are no CCTV cameras at all.