National Institute of Speech & Hearing invites sealed quotations from eligible and qualified firms/agencies for the cleaning of nine drinking water storage tanks located within the NISH campus at Akkulam, Sreekariyam P.O., Thiruvananthapuram. The work includes cleaning overhead and ground-level water tanks of various capacities situated in Thejus and Dhyan Buildings. Interested agencies may submit quotations including all applicable charges and GST on or before 01 June 2026 at 12:00 Noon. The quotations will be opened on the same day at 03:00 PM at NISH in the presence of quotationers or their authorized representatives. Further details and terms & conditions can be obtained from the Administrative Officer, NISH, up to 29 May 2026, 04:00 PM.

For more details, please refer to the tender document. 

Executive Director,

Quotation Inviting Authority.