I agree that staring just takes place in India - whether male or female and also agree that a lot of the time female travellers may be mistaking this for something more sinister. Sure, I have heard of the odd cheeky bum pinch or whatever in crowded places but think you will find that a hard stare, or even a shove will do the trick. Indians tend to have a totally different idea of personal space and a bit of 'argy bargy' in train station queues is almost expected. Just get stuck in.
Don't wear really tight, revealing tops or micro skirts and you should be OK. Tons of backpackers and tour groups traipse through most of India on an almost daily basis so it is fair to say that Indians are aware of our clothing tastes/choices. Just apply a bit of common sense... the most important thing is that you are comfortable and not deliberately trying to offend.
Finally, men the world over check out women whether subtly or not. Indian men are no different and I think the idea that they are particularly lecherous is often a bit unfair. As I said, you will notice a different idea of eprsonal space in crowded places, whether male or female this is the case. I have had men stroking my arms (curious about my tattoos0 without any shame at all! I also had a man sit down right next to me on a train station platform and just completely size me up - unashamedly staring right at me from literallyl a few inches away. Other times whole groups of people gravitate over for a look. It is harmless.
India is, in my opinion having travelled there on 4 seperate occasions and from top to bottom, east to west and almost everywhere in between, a very non-threatening country to travel in. The people are warm, curious, helpful, fun, friendly and certainly can also be a trifle odd in a charming and uniquely Indian way. I love it there and am sure you will too.
Just use your head, try to keep your cool, and be prepared for a very BIG travel experience. And really, don't be afraid to elbow, shove, and really stick up for yourself in queues ot at train station platforms trying to get on trains. Its normal!!
Go get 'em