Muslims while he stayed at Ratnagiri during 1921–1923. According to Bhai Parmanand, his fellow prisoner at the Cellular Jail during 1915–1920, Savarkar had already formed his ideas about Hindutva before they met. Subsequently, Savarkar was known for his anti-Muslim writings. Historians including Rachel McDermott, Leonard A. Gordon, Ainslie Embree, Frances Pritchett and Dennis Dalton state that Savarkar promoted an anti-Muslim form of Hindu nationalism. Savarkar saw Muslims in the Indian police and military to be "potential traitors". He advocated that India reduce the number of Muslims in the military, police and public service and ban Muslims from owning or working in munitions factories. Savarkar criticized Gandhi for being concerned about Indian Muslims. In the 1940s, the two-nation theory was supported by Muhammad Ali Jinnah and Savarkar, additionally Savarkar also urged Sikhs to establish an independent "Sikhistan". While Jinnah supported a separate country for Muslims as a part of this theory, Savarkar wanted both religions in the same country where the Muslims lived in a subordinate position to the Hindus. In his 1963 book Six Glorious Epochs of Indian History, Savarkar says Muslims and Christians wanted to "destroy" Hinduism. Women Historian Vinayak Chaturvedi writes that in a 1937 speech Savarkar said that "Kitchen and children were the main duties of women" and suggested that they have healthy children. Unlike Tilak who said that women should not be allowed education at all as reading may make them "immoral" and "insubordinate", Savarkar held a less extreme view. Savarkar did not oppose education of women but suggested that the education focus on how they could be good mothers and create a generation of patriotic children. In an essay, "Women's beauty and duty", he stated that a woman's main duty was to her children, her home and her country. As per Savarkar, any woman digressing from her domestic duties was "morally guilty of breach of trust". In his 1963 book Six Glorious Epochs of Indian History, Savarkar advocated use of rape as political tool. He accused Muslim women of actively supporting Muslim men's atrocities against Hindu women, Savarkar wrote that young and beautiful Muslim girls should be captured, converted and presented to Maratha warriors to reward them, stating that the Muslim ruler Tipu Sultan had similarly distributed Hindu girls among his warriors. He further wrote: "Let the sultans and their peers take a pledge that in the event of a Hindu victory our molestation and