What are the similarities between Hinduism and Greek mythology? Updated

There are many similarities among different mythical characters of different epics. I dont know whether they are same or related to each other. Same thing is there in Mahabharata and Trojan war. I wonder if our mythology is influenced by theirs or theirs by ours! I guess we used to live in the same area and now we had different versions of same epic. Here I have compared some of the characters and I tell you this is very interesting.