Description: The Regional Institute of Ophthalmology (RIO), MCH Campus, Kolkata, has released the 2nd Call e-Tender (Memo No. RIO-2026/728) for the procurement of various items. Indian or foreign manufacturers, importers, authorized agents, and authorized distributors are eligible to participate. Technical and financial bids must be submitted by 20 August 2026, 6:00 PM. Contact Details: Director, Regional Institute of Ophthalmology (RIO) MCH Campus, Kolkata – 700073, West Bengal Website: https://wbtenders.gov.in Website: http://riokolkata.in