Link of my website http://www.nagarro.com and http://www.nagarro.com/default.aspx when opened show up the same page but have different Page Ranks by Google. Please guide me towards the negative or any impacts of this fact. Is Google treating them as two different pages even though the same page open up?
I'm not completely sure, but I think that Google may see it as two different pages. You may try Google Webmaster Tools to get more insight.