Why is India prosecuting Muslims who said ‘I love Muhammad’?

New Delhi, India – For the last month, Indian police have raided multiple markets and homes, arresting Muslim men in states governed by Prime Minister Narendra Modi’s Hindu nationalist party. Some of their homes have been bulldozed.

The genesis of their alleged crime is common: writing, “I Love Muhammad”, a reference to Prophet Muhammad, on posters, t-shirts, or in social media posts. The authorities say the expression is threatening “public order”.

So far, at least 22 cases have been registered against more than 2,500 Muslims. At least 40 people have been arrested across multiple states governed by the Bharatiya Janata Party (BJP), according to the nonprofit Association for Protection of Civil Rights (APCR).

So, what is happening? How and where did this start? And is it illegal to say ‘I Love Muhammad’ in India?

On September 4, Muslims living in Kanpur city of the northern Indian state of Uttar Pradesh were observing Eid al-Milad al-Nabi, the celebration of the birth of Prophet Muhammad, when a neighbourhood put up an illuminated board saying, “I love Muhammad”.

But the board, mimicking the popular “I Love New York” signage that has been copied all over the world, drew criticism from some local Hindus. Initially, their complaint alleged that the illuminated board was a new introduction to traditional festivities on the occasion, when Uttar Pradesh’s laws bar new additions to public religious celebrations. About 20 percent of Kanpur’s population is Muslim.

However, based on complaints, the police filed a case against two dozen people on much more serious charges: promoting enmity on the grounds of religion. The charge carries a punishment of up to five years in jail if the accused individual is convicted.

The Kanpur episode drew widespread criticism from Muslim political leaders, and protests against the police action spread to other states, including Telangana in southern India, Gujarat and Maharashtra in the west, and in Uttarakhand and Jammu and Kashmir in the north. The  “I love Muhammad” hoardings and writings came up across the country – from people’s social media handles to t-shirts.

Nearly 270km (168 miles) away from Kanpur, in Uttar Pradesh’s Bareilly, a group of people participating in a demonstration called by a local imam against the Kanpur arrests, violently clashed with the police on September 26.