Indian authorities have banned the Popular Front of India and its affiliates, accusing them of involvement in “terrorism”, and banned them for five years after authorities arrested more than 100 members of the Front this month.

The Popular Front did not respond to an emailed Reuters request for comment, but its now-banned campus front in India is calling the government’s actions political revenge and propaganda.

On Tuesday, the Front denied allegations of violence and anti-state activities when its offices were raided and dozens of its members were detained across states.

“The PFLP in India and its partners, affiliates or fronts have been found to be involved in serious crimes including terrorism and its financing, as well as horrific targeted killings that violate constitutional order,” the Home Office said in a statement.

Muslims make up 13% of India’s 1.4 billion population, and many complain about the marginalization under the Hindu nationalist Bharatiya Janata Party (BJP) of Prime Minister Narendra Modi.

The party denies the allegations and points to claims that all Indians, regardless of their religion, benefit from the government’s focus on economic development and welfare.

The ban is likely to outrage opponents of a government that enjoys popular support and a comfortable majority in parliament eight years after Modi first became prime minister.