Rural Development Department Bihar Potable Water Purification System Tender Kishanganj 2026 ISI/ISO Standards

Submit GST, PAN, UID, and turnover certificates; provide ISO-related and OEM authorization documents, sample of the system, and prior work certificates. Ensure compliance with IS/ISO standards, real-time TDS/pH displays, and UV lamp conformity; delivery includes installation and commissioning.

Required documents include GST certificate, PAN, UID, turnover certificates (last 2 years, ₹50 Lakh/year), ISO certificate, OEM authorization, sample, GSTR-3B, notarized affidavit of non-blacklisting, ITRs (AY 2023-24 to 2025-26), and colorful item catalog with specifications.

System must support UV-based disinfection with UV system conformity, Electro de-ion module with specified reference voltage, real-time TDS/pH displays, and AR/FL/Cl removal capabilities; conform to IS/ISO certification requirements as applicable.

Delivery quantity can vary up to 25%; extended delivery time applies with a minimum of 30 days; installation and commissioning are included, along with inlet/outlet piping from raw sources to purified water tank.

Bidders must show similar work experience in potable water purification; last two years turnover of at least ₹50 Lakh per year; provide prior project certificates and the five most recent work completions.

The system must provide provision for arsenic, fluoride, and chloride removal; antiscalant provisions apply where silica is up to 10 ppm and mica up to 100 ppm, with proper filtration stages and storage tank integration.

The tender allows an optional comprehensive warranty through bidding which, if chosen, supersedes the standard catalogue warranty; installation and commissioning included, with potential ongoing support as per contract terms.

Submit the mandatory system sample before the bid deadline, along with ISO certificates related to water purification work; ensure GSTR-3B is up-to-date and include OEM authorization for the equipment supplied.