The Maharashtra police has received a threat call to blow up three major railway stations in the city. As per the information, the caller said that a few people from Porbandar have come into the city and are planning to attack Dadar, Kurla and CSMT railway stations. Meanwhile, the police have taken the caller into custody from the Aurangabad district to understand if the caller is also a part of the gang that is allegedly planning the attack, and a thorough investigation is underway.