According to a blog on the Wall Street Journal, 72 percent of 1,200 tour operators surveyed have had female travelers (mostly from Western countries) cancel bookings to India in the last three months.
India's reputation as a travel destination has come under siege after a series of rapes of both local and foreign women have made their way through global media, including a brutal gang rape on a bus three months ago that dominated international headlines and resulted in the death of the victim from severe injuries. Since then, a study by the Associated Chambers of Commerce and Industry of India shows that international arrival numbers are down 25 percent since the same period last year - a total of 35 percent for female travelers specifically.
Both sources above cite the growing concern that the country is not safe for female travelers, and is echoed by a Wall Street Journal poll in which over 76% of respondents agree.
Annual tourism to India is a $17.74 billion industry.
For more information on the attacks and India's legislative response, read the entire blog.