Protests erupted in Kolkata on Monday as BJP supporters raised slogans and took to the streets over the alleged gang rape of a 23-year-old medical student in Durgapur, West Bengal. (PICS/ PTI)

Prime Minister Narendra Modi on Wednesday said that India`s unity in diversity is under threat from infiltrators causing a demographic shift, warning that it poses a risk to social harmony and internal security. (Pics/PTI)