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Contract Addendum Letter

Contract Addendum Letter Template for India

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Contract Addendum Letter

"I need a Contract Addendum Letter to modify our existing service agreement with ABC Technologies Ltd., extending the contract duration by 12 months to March 15, 2025, and updating the monthly service fees from ₹50,000 to ₹65,000."

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Document background
The Contract Addendum Letter is an essential legal instrument used when parties need to modify an existing contract without creating an entirely new agreement. Governed by Indian contract law, particularly the Indian Contract Act, 1872, this document type is commonly used when circumstances require changes to original terms such as deadlines, pricing, scope of work, or other contractual obligations. The addendum must clearly reference the original agreement and specify exactly what is being modified while explicitly stating that all other terms remain unchanged. It requires proper execution by authorized signatories and may need to be stamped in accordance with local stamp duty laws. The document is particularly useful in ongoing business relationships where flexibility is needed to accommodate changing circumstances while maintaining legal certainty.
Suggested Sections

1. Letter Header: Including date, addressee details, and reference number of the original contract

2. Subject Line: Clear identification that this is an addendum to the specified contract

3. Original Contract Reference: Details of the original contract including date, parties, and subject matter

4. Purpose Statement: Brief explanation of why the addendum is necessary

5. Modification Details: Clear and specific description of the changes being made to the original contract

6. Effect on Original Agreement: Statement confirming that all other terms of the original contract remain unchanged

7. Effective Date: When the modifications will take effect

8. Signature Block: Space for authorized signatures from all parties

Optional Sections

1. Recitals: Used when complex background information needs to be included to explain the context of the modifications

2. Consideration Statement: Required if there is a change in the consideration or payment terms

3. Governing Law Confirmation: Include if there's any change to the jurisdiction or if the original contract didn't specify it

4. Counterparts Clause: Include if the addendum may be signed in multiple copies or electronically

5. Witness Block: Include when local law requires witnesses or when dealing with high-value modifications

Suggested Schedules

1. Schedule of Modifications: Detailed table or list showing original clause vs. modified clause when multiple changes are being made

2. Updated Price List: If the addendum involves changes to pricing or payment terms

3. Revised Timeline: If the addendum modifies project deadlines or delivery schedules

4. Authorization Documents: Copies of board resolutions or powers of attorney proving signing authority, if required

Authors

Alex Denne

Head of Growth (Open Source Law) @ tiktok³ÉÈË°æ | 3 x UCL-Certified in Contract Law & Drafting | 4+ Years Managing 1M+ Legal Documents | Serial Founder & Legal AI Author

alex.den.21@genieai.co
Relevant legal definitions




















Clauses




















Relevant Industries

Information Technology

Manufacturing

Professional Services

Real Estate

Construction

Healthcare

Financial Services

Retail

Telecommunications

Education

Energy

Logistics

Consulting

Entertainment

Hospitality

Relevant Teams

Legal

Procurement

Finance

Operations

Business Development

Compliance

Risk Management

Administrative

Contract Management

Corporate Secretariat

Commercial

Relevant Roles

Legal Counsel

Contract Manager

Business Development Manager

Project Manager

Procurement Manager

Corporate Secretary

Chief Financial Officer

Chief Executive Officer

Operations Manager

Account Manager

Compliance Officer

Risk Manager

Commercial Director

General Manager

Administrative Officer

Industries






Teams

Employer, Employee, Start Date, Job Title, Department, Location, Probationary Period, Notice Period, Salary, Overtime, Vacation Pay, Statutory Holidays, Benefits, Bonus, Expenses, Working Hours, Rest Breaks,  Leaves of Absence, Confidentiality, Intellectual Property, Non-Solicitation, Non-Competition, Code of Conduct, Termination,  Severance Pay, Governing Law, Entire Agreemen

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