South Eastern Railway invites online tenders under Notice No. SER-OHE-KGP-TATA-2X25KV. The project covers the design, supply, and installation for upgrading the electric traction system from 1x25 KV to 2x25 KV. Construction targets the Kharagpur - Tatanagar track section to meet heavy loading capabilities. The infrastructure assignment carries an estimated budget of Rs. 178,77,55,381.25 with a bid security of Rs. 3,57,55,100. Project schedules are hosted on the IREPS portal at www.ireps.gov.in. Electrical engineering firms must submit digital proposals before 02:00 PM on September 3, 2026.