The Centre for Railway Information Systems is issuing a public tender for the supply, installation, testing, and commissioning of maintenance-free 12V, 200 AH VRLA batteries on a buy-back basis for its data centre under notice reference 2026_CRIS_ELECT_02—with an official online application closing deadline fixed for August 17, 2026, at 3:00 PM—and official documentation hosted on the railway portal ireps.gov.in.