ISRO tenders: how to register on ISRO e-Procurement, get empanelled and bid

An ISRO tender is a purchase notice from the Indian Space Research Organisation or another unit of the Department of Space. ISRO's centres buy far more than rocket parts: recent tenders on its portal ranged from cleaning chemicals and storage racks to a screw air compressor, an industrial theodolite and an IP-based audio-video system. This guide explains the ISRO e-Procurement portal, how to register as a vendor, which centres buy there, how empanelment gets you into limited tenders, and where else ISRO publishes. It is based on the portal itself and ISRO's vendor registration documents.

Where to find ISRO tenders

ISRO publishes in more than one place. Here is what each is for:

Two rules explain this. Publishing tenders on the Central Public Procurement Portal has been compulsory since 2012; ministries and their offices started on 1 January 2012. And under Rule 149 of the General Financial Rules, central ministries and departments must buy goods and services available on GeM through GeM. The Department of Space is a central department, so both apply to its units.

Where you actually bid depends on the tender. Read the notice: it tells you whether to bid on ISRO's portal or on GeM.

The ISRO e-Procurement portal (eproc.isro.gov.in)

The portal at eproc.isro.gov.in is run by ISRO under the Department of Space. It is ISRO's own system, separate from the central eProcurement portal at eprocure.gov.in, so you register on it separately.

You don't need to log in to look around. The home page lists the open tenders, each with its:

• tender number and centre name
• description of the work or item
• bid closing date and bid opening date
• Tender Document and View links

Tenders that have been changed after publishing carry a Corrigendum mark. Check it before you prepare your bid, because a corrigendum can change the dates, the quantity or the terms.

The home page also links these documents and pages. Read the first three before you register:

• Pre-requisites for Vendor Registration
• Vendor Registration Process
• Pre-requisites for Bidding
• New Vendor Registration, where you register
• How to get empaneled for LT/ST, the user manual for item empanelment
• User Manual, on updating your vendor profile
• Forgot password
• Procurement Live Register for ISRO, and a separate one for URSC

ISRO centres that buy on the portal

Each ISRO centre runs its own purchases, and the centre name on a tender tells you who is buying. The tender document gives the delivery place or work site. On 31 October 2026 the portal had open tenders from these units, named as the portal shows them: SDSC SHAR (Satish Dhawan Space Centre), SAC (Space Applications Centre), URSC, LEOS, LPSC, MCF, VSSC, ISTRAC, ISRO HQ, IISU, HSFC and PRL.

The list changes as tenders open and close, so a centre missing from it on a given day may still buy through the portal.

How to register on ISRO e-Procurement

ISRO's registration documents say registration "can be done by any authorised person of a company, who possesses a Digital Signature Certificate issued by a Certifying Authority in India". So get the DSC first.

1. Read the pre-requisites. Open Pre-requisites for Vendor Registration and Vendor Registration Process on the home page, and keep your firm's details and documents ready.
2. Get a DSC in the name of the person authorised to act for your firm. See the next section.
3. Click New Vendor Registration on eproc.isro.gov.in.
4. Sign in with your DSC and verify it. ISRO's registration process starts with the certificate. You then accept the terms, set your login details and fill in the registration form.
5. Validate your email address to finish.
6. Keep your profile up to date. The portal's User Manual explains how to update your vendor profile.

Remember your password. ISRO's registration document says you will need it when you replace an expired DSC with a new one.

Foreign vendors can register too, but only with a valid DSC issued by an Indian certifying authority. Their authorised Indian agents can also register.

DSC for ISRO e-tenders

Any DSC you buy today is Class 3, because Class 2 certificates are no longer issued. Buy it from a certifying authority licensed in India, in the name of the person who will sign for your firm.

Some portals need only a signing certificate. Others also ask for an encryption certificate, sold as a "signing + encryption" pair. ISRO's Pre-requisites for Bidding document on the portal sets out what you need. Read it, or ask the helpdesk, before you buy, so you don't have to buy twice. Our DSC guide explains the types and how to choose.

Empanelment for ISRO limited and single tenders

Registering on the portal and being empanelled are two different steps:

• Registration lets you see and respond to public tenders, the ones open to all.
• Item empanelment puts you on ISRO's list for particular items. ISRO's documents say it "is required for receiving invitation for participating in Single / Limited tenders".

In general, a limited tender (LT) goes only to the vendors the buyer invites, and a single tender (ST) to just one. So if you supply items ISRO centres buy often, empanelment matters. The portal's How to get empaneled for LT/ST manual explains the steps. Our vendor empanelment guide explains how empanelment works across government buyers.

How to bid in an ISRO tender

Each tender's own instructions come first. Most bids follow this order:

1. Open the tender document from the Tender Document link, and check the centre, the delivery place and the dates.
2. Check for a corrigendum, and read any that apply.
3. Read Pre-requisites for Bidding on the portal, and make sure your DSC and profile are ready.
4. Check the conditions: who may bid, the experience and documents asked for, and any bid security.
5. Prepare your technical and price bids in the formats the tender asks for, and sign them with your DSC.
6. Submit before the bid closing date, and keep the confirmation. The home page shows the bid opening date too.

If you make precision parts, electronics or test equipment, defence buyers such as DRDO units and the defence PSUs may need them too. Our defence tenders guide explains where they publish and how they buy.

MSE and Make in India benefits

The Department of Space is a central government department, so the Public Procurement Policy for Micro and Small Enterprises applies to its purchases. Under the policy:

• central buyers must buy at least 25% of their goods and services from MSEs each year
• MSEs get tender documents free and are exempt from EMD
• an MSE quoting within 15% of L1 can match the L1 price and supply up to 25% of the order
• the benefits are for goods MSEs make and services they provide, not for traders and not for works
• MSEs still give performance security if they win

If a tender applies the Public Procurement (Preference to Make in India) Order, Class-I local suppliers, with at least 50% local content, can get purchase preference. The tender says whether it applies and how to declare your local content. Our Make in India guide explains the classes.

ISRO e-Procurement helpdesk

The portal's home page gives these contacts:

• Email: eproc@vssc.gov.in
• Phone: +91 471 2565454 / 4162
• Hours: 6 am to 8 pm, 7 days a week

Use it for problems with the portal itself, such as registering or logging in. For a question about a tender's scope or terms, follow the contact given in that tender document. If you forget your password, use Forgot password on the home page.

ISRO tenders on GovtTenderHub

GovtTenderHub reads ISRO e-Procurement and NIC ePublishing directly. At the end of October 2026, it showed 70 open ISRO tenders from ISRO e-Procurement and 69 from NIC ePublishing. You can see them together on our ISRO organisation page, with the closing date and centre for each.

Much of what ISRO buys is equipment and electronics, so our IT and electronics tenders page is worth a look for similar work from other buyers. Tenders from other central ministries are on our central eProcurement tenders page. Searching and reading tenders is free, and a free account sends daily email alerts for one district.

Common questions

How do I register on ISRO e-procurement?

Get a DSC issued by a certifying authority in India, then click New Vendor Registration on eproc.isro.gov.in. You sign in with the DSC and verify it, accept the terms, set your login details, fill in the form and validate your email. Read the portal's Pre-requisites for Vendor Registration first.

Can I see ISRO tenders without registering?

Yes. The home page of eproc.isro.gov.in lists open tenders with their centre, closing and opening dates, and a Tender Document link. You need to register only to bid.

What is item empanelment in ISRO?

It puts your firm on ISRO's list for particular items. ISRO's documents say it is required to be invited to single and limited tenders. Registration alone lets you respond only to public tenders.

Which DSC is needed for ISRO e-procurement?

A Class 3 DSC from a certifying authority licensed in India, for the person authorised to act for your firm. Check the portal's Pre-requisites for Bidding to see whether you also need an encryption certificate before you buy.

Can foreign companies bid in ISRO tenders?

Foreign vendors can register on ISRO e-Procurement, but only with a valid DSC issued by an Indian certifying authority. Their authorised Indian agents can also register. Each tender says who may bid.

What is the ISRO e-procurement helpdesk number?

+91 471 2565454 / 4162, or email eproc@vssc.gov.in. The helpdesk works from 6 am to 8 pm, 7 days a week.