Regional railway police incharge Rajkumar Gautam said after the incident in Chennai, a high alert was sounded in the area and standard operating procedures were implemented.
Security has been scaled up and a strict vigil is being maintained at all stations and sensitive places in the division.
A 24-year old woman techie was killed and 14 others injured when a twin bomb blast rocked the Bangalore-Guwahati Express at the busy Central Railway station in the city on Thursday.
