Venera Technologies Web Developer interview questions

First I got a call from hr after applying then an aptitude/coding MCQ type test. After I cleared that I got a interview call for Hands on programming, interview was quit good it last for 75min .I got all right except only one. After that I didn't get any mail , then I contacted them . Then they told me that I was not considered. I know people(female) who have got selected with getting only one right in the same organization. I just don't understand this discrimination between male and female, that's why I am writing this review.