India, Aug. 15 -- Prime Minister Narendra Modi on Friday called infiltration "a well thought-out conspiracy" to change the country's demography as he announced a high-powered "demographic mission" to tackle what he described as a massive crisis. He said demographic changes were being triggered by infiltration.

Modi added that infiltration in border states can compromise national security and development. He said that the "demographic mission" will work within a stipulated time and a strategy.

Modi, who raised the issue of infiltration for the first time in his Independence Day speech, described the illegal influx of people as a challenge. "The country's demography is being changed as a part of a well-thought-out conspiracy. A new crisis...