India's tourism sector has been hit by a wave of violent anti-government protests that came out against a new nationality law in several cities this month, with at least seven countries issuing warnings to their citizens to travel there.

At least 25 people were killed in clashes between police and protesters, and anti-law demonstrations continued.

Officials estimate that about 200,000 tourists from inside and outside the country have canceled or postponed visiting the Taj Mahal, which is one of the most attractive places for tourists, during the past two weeks.

"The number of tourists decreased by 60% in December this year," compared to their number in the same month last year, said Dinesh Kumar, an inspector who oversees a police station for tourists near the Taj Mahal and can view visitor data.

"Indian and foreign tourists are calling our observation rooms to check on security. We assure them that we provide protection, but despite this many people decide to avoid visiting."

The building of this marble edifice dates back to the seventeenth century and is located in the northern Indian state of Uttar Pradesh, which witnessed the largest number of deaths and severe waves of violence during two weeks of unrest.

The Taj Mahal, located in the town of Agra, attracts more than 6.5 million tourists annually, and the country earns about $ 14 million every year from its entry fees.