What to Put in an MEP Tender for a Pharma Plant: Clean Utilities, HVAC and Qualification
An MEP tender for a pharma plant should say which GMP standard the plant is built to, give each room its grade and pressure relationship, define the HVAC and utility design basis, and list the qualification documents the contractor must deliver. Without those four, bidders price different buildings, and the lowest bid is often the one that left the pharma-specific work out.
Start with the regulatory basis, stated in the tender
Indian pharma plants are inspected against Schedule M of the Drugs Rules. The Ministry of Health notified a revised Schedule M on 28 December 2023, retitled "good manufacturing practices and requirements of premises, plant and equipment for pharmaceutical products". Large manufacturers (turnover above Rs 250 crore) were given six months; small and medium manufacturers were given a conditional extension to 31 December 2025, as the Ministry's release of 12 February 2025 explains. That date has passed, so the owner's regulatory consultant should confirm the plant's current compliance position before the tender is drafted.
Put the basis in the tender in one line: the revised Schedule M, plus any further standard the owner has chosen (for example an export market's guideline). Do not leave it to bidders to guess. A contractor pricing against "GMP" in general and one pricing against a stated grade table will be far apart.
What the tender must define
The notified text makes the premises, the HVAC system and the supporting utilities part of what must be designed, qualified and maintained. That is the contractor's scope boundary question, and the tender should answer it clause by clause. The table sets out the sections that matter most.
| Tender section | What to specify | What goes wrong if it is left out |
|---|---|---|
| User requirement specification (URS) | Products, dosage forms, batch sizes, shifts, future expansion, containment needs | Plant sized for today's line; no space for the next one |
| Room schedule | Each room, its cleanliness grade, temperature and humidity limits, pressure relative to neighbours, air-change basis | Bidders choose their own grades and the HVAC price is not comparable |
| HVAC design basis | Air-handling unit zoning, filtration stages including terminal filters, return and exhaust approach, redundancy, control and alarms | Dedicated and shared systems priced differently; cross-contamination risk left to the contractor |
| Pressure cascade and airlocks | Pressure steps between grades, airlock types, door interlocks, differential-pressure indication and alarm | Airlocks drawn but not interlocked; no monitoring points |
| Utilities | Purified water generation and loop, compressed air quality, process steam or clean steam where needed, nitrogen if used | Loop materials, slope and sanitary fittings omitted from the BOQ |
| Electrical and controls | Power quality and backup for critical loads, cleanroom lighting, building management and environmental monitoring interface | Monitoring points that no panel can read |
| Fire and safety | Detection and suppression suited to cleanroom construction, exits through airlocks, smoke control approach | Fire design contradicts the pressure cascade |
| Qualification and documentation | Design, installation and operational qualification documents, protocols, test certificates, as-built drawings, calibration records | Handover with plant that works but cannot be shown to work |
Qualification deliverables: who gives what
The notified Schedule M requires documentary evidence that the premises, supporting utilities and equipment were designed to GMP requirements (design qualification), built and installed to their design (installation qualification) and operate as designed (operational qualification). Process validation, also called performance qualification, follows. It also requires the design, installation, qualification and maintenance of the HVAC system to be carried out, and it treats qualification as an ongoing programme and not a one-off exercise.
In a tender, split the work plainly. Typically the contractor supplies the design documents and calculations, the equipment data sheets and factory test reports, and the installation records; it performs or supports the commissioning tests (airflow, filter integrity, pressure differentials, recovery, temperature and humidity mapping where specified). The owner's quality unit owns the protocols' approval and the performance and process validation. Write down which party drafts each protocol, who witnesses each test and who signs. Ambiguity here is where handover disputes start.
HVAC details worth writing into the tender
Several figures in the notified text are guidance for sterile areas, and the tender should cite the owner's chosen basis and not assume that one grade table fits every room. For sterile manufacture, the text calls for a filtered air supply that maintains positive pressure relative to areas of a lower grade, with a guidance pressure difference of approximately 10 to 15 pascals between adjacent rooms of different grades. It asks for a warning system for air-supply failure and for pressure-differential indicators between areas where the difference matters, with the readings recorded regularly and failures alarmed. It also requires terminal HEPA filters to be leak-tested in place at a recommended interval of six months and not longer than twelve.
The practical consequences for the contract are test ports and access for filter scanning, a monitoring system that records pressure differentials, and a maintenance plan the owner can run. Ask bidders to price those items as separate lines. Oral-solid-dosage areas follow different grades and tolerances, so the room schedule, not a generic specification, should govern. See our glossary entries on cleanroom classification and HVAC commissioning for the terms.
Commercial terms that suit regulated work
Ask for a priced separation between standard MEP work and pharma-specific work, so you can see where the money goes and compare bids. Require named, experienced supervisors for the cleanroom envelope and HVAC balancing, a test-and-commissioning programme with hold points, and retention tied to the qualification documents being accepted and not only to physical completion. Include a defects period during which the contractor attends to qualification failures traced to installation. If the plant is expanding in phases, state how each phase's qualification affects the running areas, because shutdown windows for interconnection are a hidden cost.
Ask bidders to state their assumptions on air-change rates, filter grades and redundancy in a clarification schedule returned with the price. Differences in those assumptions explain most of the spread between bids, and you want to see them before award and not during qualification. Before issuing the tender, run your budget through the MEPF cost calculator as a sense check, and compare the final bids line by line against the room schedule.
How Secured Engineers helps
We design in-house and handle Fire NOC, CEIG and DISCOM net-metering filings in-house, so the tender's electrical, fire and HVAC clauses are drafted by the engineers who will draw them. Mechanical, electrical, plumbing, fire and solar work can sit under one contract, which removes the interface between separate packages. We work from offices in Noida (Delhi NCR) and Ludhiana, with 535+ projects across 18+ states and 89.77% repeat clients.
If you have a draft tender, a room schedule or a bid to compare, send it for a BOQ and drawing review. See our turnkey MEPF contracting service, message us on WhatsApp, call +91 70099 85817, or ask for a free proposal.
Frequently asked
Which standard should a pharma MEP tender name?
Name the revised Schedule M notified on 28 December 2023, and any further guideline the owner has chosen, such as the rules of an export market. Also attach the room schedule with grades and pressures. A tender that says only GMP lets each bidder assume a different building.
Who is responsible for HVAC qualification in the contract?
The tender should state it. Typically the contractor delivers design documents, installation records and the commissioning tests, while the owner's quality unit approves protocols and owns performance and process validation. Write down who drafts, who witnesses and who signs each protocol so that handover is not argued later.
Should the tender separate pharma-specific work from ordinary MEP work?
Yes. Ask for priced lines for the cleanroom envelope, terminal filtration, airlocks and interlocks, pressure monitoring, and the water and air utilities. Separate lines let you compare bids on like terms and show where a low bid has left the specialist work out.
Does the revised Schedule M deadline still apply to my plant?
The Ministry's release gave small and medium manufacturers a conditional extension to 31 December 2025, and that date has passed. Your regulatory consultant or the licensing authority should confirm your plant's current position, because later orders may change it. Do not draft the programme without that confirmation.
How often must HEPA filters be leak-tested?
For sterile manufacture, the notified text recommends an installed filter leakage test at an interval of every six months, not exceeding twelve months. The tender should therefore provide test ports and access for scanning, and the maintenance contract should include the test. Other areas follow the owner's own risk assessment.
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