South Eastern Railway SER has achieved 100 per cent route electrification with the completion of work in Rupsa-Bangriposi section of the Kharagpur division, an official said here on Friday.The Kolkata-headquartered SER is the second railway zone in the country after West Central to fully electrify its route, its spokesperson K S Anand said.The 89-km Rupsa-Bangriposi project was sanctioned in 2018-19 at a cost of Rs 94.89 crore, he said.Electrification of the Rupsa-Bhanjpur section 55 km was completed on March 30, 2021.