Related Rule
India
Practice Relating to Rule 158. Prosecution of War Crimes
Section A. General
India’s Geneva Conventions Act (1960) provides:
(3) If any person within or without India commits or attempts to commit, or abets or procures the commission by any other person of a grave breach of any of the [1949 Geneva Conventions] he shall be punished …
(4) When an offence under this chapter [i.e. a grave breach of the 1949 Geneva Conventions] is committed by any person outside India, he may be dealt with in respect of such offence as if it had been committed at any place within India at which he may be found. 
India, Geneva Conventions Act, 1960, Sections 3 and 4.
In 2008, in a statement during the 2008 UN parliamentary hearing, the representative of India stated:
Sexual violence against women and children is an unacceptable crime that unfortunately remains a serious modern-day challenge. India has taken note of [UN] Security Council Resolution 1820 of June 2008, which called for immediate and complete cessation of all acts of sexual violence against civilians by all parties to an armed conflict. …
There are adequate international legal agreements as well as domestic statutory laws that condemn such violence. No society or country can ever justify this practice. The fact that such violence persists is not due to the deficiency of legal measures to punish perpetrators. In our view, the problem lies in the implementation of such measures. We agree that adequate training must be given to troops, including through the extension of training to inculcate sensitivity to such issues, especially those involved in peacekeeping and peacemaking efforts. At the same time, governments must also ensure the application of appropriate disciplinary measures whenever these are necessary.
Another way of setting an example is by ending impunity and meting out swift punishment to the perpetrators of crimes against women and children, in accordance with the obligations States have undertaken under international humanitarian law and international human rights law. Swift and exemplary punishment, within existing laws, will deter others from committing such acts. At the same time, it is essential to bear in mind the primary responsibility of nation States to respect and ensure the protection of the human rights of all of its citizens. 
India, Statement by the representative of India during the 2008 parliamentary hearing at the UN, “Session II: Sexual violence against women and children in armed conflict”, 20 November 2008.