Ra.one's ideas copied from rajni's ROBOT?!

The first 30 second trailer of the much awaited RA.One was released today, but it opened to rather mixed reactions. I found some obvious similarities between many Superhero films and this one. Of all the movies, it seems to have been influenced by the Rajni-Ash starrer 'Robot' (Endhiran) the most.
Even months before, media had come out with stories that RA.one is a mishmash of Robot and Toonpur Ka Superhero. The media was also the first to spot the stark similarities between the posters of Ra.one and Robot. If you weren't updated on these stories before,
Check this out.
First photo courtesy : mid-day
In the pictures below, the top image is from RA.one and the below one from Robot. I'm not making any judgements here but this looks very, very similar. What do you think?
 
G.one even wears contacts like Chitti!