Department of Military Affairs Tender by Indian Army (GEM/2025/B/6133829)
Upgradation of ZU 23MM Air Defence Gun System to Enhance all Weather Capability

Tender Timeline
Tender Title: Upgradation of ZU 23MM Air Defence Gun System to Enhance all Weather Capability
Tender Reference Number: GEM/2025/B/6133829
Issuing Authority/Department:
Ministry of Defence, Department of Military Affairs
The purpose of this tender is the upgradation of the ZU 23MM Air Defence Gun System. The project aims to enhance the system's all-weather capabilities ensuring operational efficacy and reliability. The upgraded system is expected to meet modern-day air defence requirements and improve overall defence preparedness.
Scope of Work and Objectives
The primary objective of this tender is to secure a contractor who can undertake comprehensive upgrades to the ZU 23MM Air Defence Gun System. This encompasses various enhancements including but not limited to:
- Integration of state-of-the-art electronic systems.
- Improvement in fire control systems for increased response speed.
- Modifications to enhance mobility and deployment capabilities.
- Ensuring that the system performs reliably under varied weather conditions.
The successful bidder will be tasked with providing a detailed solution that meets all specified technical requirements while maximizing operational capabilities.
Eligibility Criteria
To participate in this tender, bidders must fulfill the following eligibility requirements:
- The bidder must be a registered entity in India.
- Proven experience in defence systems or equivalent technology upgrades.
- A minimum of three completed projects in air defence systems or related fields within the last five years.
- Financial capability to handle the total quantity of 142 units as specified in the tender brief.
Technical Requirements
Bidders are required to provide comprehensive documentation detailing how their proposed solutions will meet or exceed the performance benchmarks outlined by the Ministry of Defence. Key areas to address include:
- Specifications for upgraded components.
- Compatibility with existing infrastructures.
- Testing and validation methods for performance assessment.
Successful submissions should ensure that all proposed solutions comply with prevailing quality standards and testing criteria.
Financial Requirements
Bidders must submit financial statements that showcase a robust economic standing. The tender also stipulates that an Earnest Money Deposit (EMD) should be provided along with the submission, the details for which will be outlined in the provided tender documents.
Document Submission Details
All submissions must be formatted according to the guidelines specified in the tender documentation. Bidders will be required to submit the following:
- Technical proposal, including detailed technical specifications.
- Financial proposal, that includes a breakdown of costs.
- Compliance documentation certifying adherence to quality and technical standards.
Submissions must be delivered via the designated platforms as referenced in the tender documentation.
Special Provisions
The tender includes considerations for Micro, Small, and Medium Enterprises (MSEs) and start-ups. Proposals showcasing innovations and solutions that support the 'Make in India' initiative will be favorably reviewed, emphasizing the importance of local procurement.
Evaluation Process
The evaluation of submitted tenders will involve a thorough assessment of both technical and financial proposals. The review will focus on the following:
- Compliance with technical specifications.
- Cost-effectiveness.
- Quality and reliability of proposed upgrades.
Successful candidates will receive notification through the appropriate channels once the evaluation process is complete.
Delivery Locations
The successful contractor will be responsible for the delivery of upgraded systems to specified military locations, as detailed in the final tender documents.
Contact Information
For additional queries regarding this tender, interested bidders should refer to the official channels outlined in the Ministry of Defence’s tender documentation. It is vital for potential bidders to ensure clarity on all points before proceeding with the submission.
General Information
Financial Information
Evaluation and Technical Information
Tender Documents
4 DocumentsDocuments Required from Seller
- Experience Criteria
- Past Performance
- Bidder Turnover
- Certificate (Requested in ATC)
- OEM Authorization Certificate
- OEM Annual Turnover *In case any bidder is seeking exemption from Experience / Turnover Criteria
- the supporting documents to prove his eligibility for exemption must be uploaded for evaluation by the buyer
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Frequently Asked Questions
The eligibility requirements include being a registered entity in India, possessing proven experience in defence upgrades, especially in air defence systems, and showing financial capability to fulfill the contract for all 142 units required. Bidders must have completed at least three projects in the relevant field over the last five years to qualify for this tender.
Bidders must submit relevant certificates proving their registration with appropriate regulatory bodies in India. They also need compliance certificates that align with industry quality standards and technical specifications. Additionally, bidders may need to provide documentation that verifies their previous project experience and capabilities.
Proposals in response to this tender must be submitted electronically in specific formats as indicated in the tender guidelines. Standard acceptable formats typically include PDF and DOCX. Each proposal must include all necessary documentation, including technical and financial details, to ensure a complete submission.
An Earnest Money Deposit (EMD) is a mandatory submission that serves to support the legitimacy of the bid. The specific amount will be detailed in the tender documentation. Bidders must adhere to the submission guidelines for the EMD, as failure to do so may result in disqualification from the bidding process.
MSEs participating in this tender will find provisions that favor their inclusion, as the Ministry of Defence aims to support local businesses. Bids from MSEs will be evaluated with a focus on their capabilities and potential innovative solutions, particularly those that comply with Make in India policies, thereby enhancing their opportunity to secure contracts through this tender.
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