Kolkata, April 14 -- Abdul Matheen Ahmed Taahaa and Mussavir Hussain Shazib, who were arrested by the National Investigation Agency (NIA) on Friday for an explosion at Rameshwaram Cafe in Bengaluru on March 1, spent a month in West Bengal, frequently changing their locations, and living in multiple low-cost hotels and lodges under false identities, investigators retracing their footsteps said....