Anti-Terrorist Squad of Rajasthan Police has issued a terror alert, saying that there is a possibility of 15 militants entering India and carrying out terror attacks.In a letter addressed to all police chief at divisional and district level, the Superintendent of Police (ATS) said: "These terrorists are skilled in making jacket bombs and vehicle-borne improvised explosive devices - VBIED.""And also they are expert in operating AK-47 guns. These devices can be used by them for terror strikes in different places in India.