Jamat-e-Islami aka Muslim Brotherhood isn't banned in India.. at least, it looks this way:

Jammu & Kashmir High Court Upholds Preventive Detention Of Alleged Leader Of Banned Organization Jamat-e-Islami

https://www.livelaw.in/high-court/jammu-kashmir/jammu-and-kashmir-high-court-upholds-preventive-detention-order-of-ameer-of-banned-jamat-e-islami-organization-234883

J&K High Court Quashes Detention Order Against Alleged Jamat-E-Islami Member, Orders ₹5 Lakh Compensation For Violating Right To Personal Liberty

https://www.livelaw.in/high-court/jammu-kashmir/jk-high-court-quashes-4th-detention-order-against-alleged-jamat-e-islami-member-orders-5-lakh-compensation-for-violating-right-to-personal-liberty-256305