The Jamaat-e-Islami Hind (JIH) is the Indian wing of the Jamaat-e-Islami (JeI), a communal, Islamist organisation active in South Asia. The JeI, which participated in the 1971 Bangladesh genocide, has been involved in violence against Hindus in Bangladesh and is also linked to the Ansarullah Bangla Team, responsible for murders of atheist and secular bloggers. The Shahbagh protests in 2013 called for stiff punishment for JeI leaders involved in war crimes. JIH leaders called these protest a conspiracy to suppress Islamists all over the world.
In India, JIH campaigns on social, political and religious issues. It welcomed the supreme court's decision to uphold Section 377 criminalising homosexuality, supports a blasphemy law for India, sees Salman Rushdie as "a great enemy of Islam", and opposes co-ed schools and Valentine's day.
In 2011, JIH founded the Welfare Party of India which fielded candidates in 25 seats winning only tiny numbers of votes. Early JIH leaders indicated that they preferred the idea of India as a Hindu state to a secular republic. Although JIH has been critical of Hindu nationalism, at various times JIH has shared common platforms with the RSS, and shares various common goals of countering secular and progressive forces.
References: A 1974 pamphlet on the history and ideology of JIH. Links to articles on Jamaat-e-Islami on South Asia Citizens Web.