Females are mostly viewed as sex objects and subservient beings only. Males are brought up to believe they are more powerful and superior in all respects. They're encouraged to be sex-crazed and dominating. Leering at females, ogling, cheap flirtation, molestation, teasing and forced sex are all considered sign of masculinity.
Even online, males tend to behave in worst ways with females, calling them dirty names or linking themselves to females.
South Asians especially believe a female is always available. If she's outside home, she's available even if she's out for a walk or going to work. If she's alone at home or is close/trusting enough then also she's "available" and can be taken advantage of.
Men believe they can have "fun" and get away by throwing away the girl. A news report claimed that Delhi Gang rape accused had said they didn't know "just a rape" would get them in this much trouble.
Actually people also feel burden of rape lies on females because nothing happens to a man but in a woman's case it becomes evident she's been raped (can tell she's not a virgin, might become pregnant).
Women are viewed as property who can be controlled, protected, stolen. They are never seen as individuals with a mind of their own. No wonder women get beaten up, raped or acid is thrown on their faces to "teach" them a lesson or put them in "their place".
Everybody believes women have certain "limits". Even kids keep dictating to a female what she should do or not do. Even if a female is online, talking freely to everyone or is online late at night or something she's harassed and taken as a loose character woman who's "available" for cheap flirtation.
Crimes against women are mostly hushed up because women themselves feel a sense of shame, are made to hold themselves responsible for attracting such treatment. The "shame" is for the female. Not for the male who perpetrated crime.
Nobody ever says why men raped. It's said men are bound to rape (men will be men). It's asked why a woman wore what she wore, went out or couldn't be careful even within the house. Mostly women are accused of provoking or seducing men or putting themselves in danger.
Comments of politicians, scientists and some reporters in Indian media have amply shown what people's mentality is with regards to women. Even in case of laws they are concerned about women "misusing" laws rather than being stricter on men who do such acts.
Violating a woman is considered okay, "no big deal" and a sign of masculinity, show of power and teaching "lesson" (read putting her in her inferior place) here.