The Tamil Nadu Police on June 23 (today) morning found two 'pipe bombs' in a cement factory in Shankar Nagar of Tirunelveli District in Tamil Nadu, reports indiatvnews.com. The pipe bombs were discovered after the cement factory management received a telephone call that improvised explosives would go off at five places in the factory if the callers were not given a ransom of INR 50, 00,000.