India has stopped giving new visas to Canadians and asked Canada to reduce the number of its diplomats in India. This is because of a dispute between the two countries. The dispute started when Canada's Prime Minister, Justin Trudeau, said that India might be involved in the murder of a Sikh separatist.

India says it is ready to investigate these accusations, but Canada has not given any evidence so far. This is a big deal because India has never before stopped giving visas to people from a Western country.

Canada's high commission in India also said that some of its diplomats received threats on social media, but they didn't say what kind of threats. India has promised to protect foreign diplomats.

The Indian foreign ministry says it stopped giving visas to Canadians because of "security threats" to its diplomats in Canada. They didn't give details about these threats. Canada's public safety minister says Canada is a safe country.

Canada is the fourth biggest source of tourists to India, with 350,000 visitors in 2019. But this number has gone down because of COVID-19.

The tension between the two countries started when Trudeau said that India might have something to do with the murder of a Sikh separatist in Canada. The Indian government says it has no connection to the murder. Canada has not explained why it thinks India might be involved.

The two countries have also expelled each other's diplomats and warned their citizens about travelling to each other's countries.

India says it is ready to look at any evidence Canada has, but so far, Canada hasn't shared any.

Canada should be worried about its reputation, not India, says India's foreign ministry spokesperson. He says Canada is becoming known as a place where terrorists and criminals can hide.

Canada has a large Sikh population, and there used to be a Sikh insurgency in India in the 1980s and 1990s. The separatists wanted to create a separate Sikh state called Khalistan. Although there's not much support for this in India now, some Sikhs in other countries still support it.

This dispute is also affecting trade between the two countries. They were talking about making a trade deal, but now those talks have stopped. Canada is India's 17th largest foreign investor, and Canadian investors have put a lot of money into Indian financial markets. Many Indian students also study in Canada.

A trade deal between the two countries could have increased trade by $6.5 billion.