Wars only make things worse: complete breakdown of law and order leads to lots of misery for lots of people for a long time.
What you are describing is not unique to India, and neither is the mentality. I have lived in US, Europe and Australia and I can assure you 100% that the mentality of people is the same everywhere. You can see old men ogling young, even pre-teen girls.
The only reason people behave in the developed world is because the law enforcement is stronger. When there is a temporary breakdown of law and order, as in during riots or natural calamities, the base nature comes out.
The solution for India lies in the same direction: improved law and order. When the fear of the law becomes credible, then people will curb their instincts.
I know war will lead to the complete breakdown of law and order, but it will only happen if there is any law and order at all. In many villages of Bihar, Uttar Pradesh, Haryana, Madhya Pradesh, etc there is little or no presence of law and order. Even if there is a police Chowki, it remains unresponsive due to reasons you know very well. The Maai Baap culture makes the law and order pathetically ridiculous. When you have to go to the police station to lodge complaints and seek protection, there even the
men don't feel safe, let alone women. Contacting the so called law and order agencies means you are digging your own grave deeper and you know how it is so.
Whatever is there in the form of law and order is not law and order in the true sense of the term. A war might at least give the chance to completely destroy the existing order so that a new one can be built in its place. To build a new structure for house one needs to destroy the old one, even if that means one will suffer losses.
Even after the Delhi gang rape and the mass protests that followed it, you see how the menace has been spreading like a virus. After this Mumbai gang rape, now a man is scared if he has a woman with him because he might get attacked just because the woman might be targeted by rapists. Population is growing like a cancerous tumor and it requires adequate policing which is not possible in a poor country like India. The establishment is spending all the money on defense but the domestic space, the inner side, is completely ignored. And this is deliberately done. They are spending money to go to Mars, Neptune, Pluto etc but they don't have the time, nor do they have the intention to keep an eye on the crimes that occur within borders.
Yes, prostitution is in every society. It is the oldest profession. I am not against it. Rather than raping someone, one should go to the brothels. But there one question remains. The hunger for sex is such as it is never satisfied, it becomes more intense day by day. Plus the demand for prostitutes will always grow with a growing population where males dominate females in terms of number. Who is going to supply the growing demand? Hence you have the menace of human trafficking and sex slave trade.
I am aware that this is not unique to India and this exists in well developed western societies. True. But you have to admit that the magnitude, the scale, the extent to which human trafficking and slave trade are running in India, western societies are nowhere near it in comparison, if you go through stats done by Govt agencies, HR organizations, NGOs and other relevant institutions. One reason of it is that women in this part of the world are more vulnerable to human trafficking and other crimes than their western counterparts. Particularly, women of the peripheral tribal societies of, say northeast India. Random kidnappings and purchase through negotiations of virgin female children are prevalent and all these victims finally end up being sex toys for sexual abuse in all those red light districts across northern India.
This trade alone involves millions of USD and such huge transaction of money attracts powerful political leaders, gangsters and other influential persons. They protect it, nurture it and help it flourish more. You remember Tiwari case? I am not mentioning the full name of that political leader, former CM of an Indian state. Yes, these old retards also need virgin teens every night. The Maharashtra Govt had made a thorough study of how dance bars contribute to trafficking and banned it. But then the most powerful institution gives a verdict and everything goes back to the former position. If these premier law and order institutions betray you, where will you go?
In such a situation, who can bell the cat?