Every cable operator, FTTH provider, and broadband entrepreneur looking to legally offer internet services in India must obtain an ISP license from the Department of Telecommunications (DoT). But there is a detail most guides skip: the ISP license category in India comes in three distinct types — Category A, Category B, and Category C — each with a different geographic scope, fee structure, and compliance footprint.
As of 2026, the DoT issues ISP authorizations under the Unified License (UL) framework. Whether you are a local cable operator (LCO) adding broadband to your existing cable TV network, an FTTH startup in Kerala or Maharashtra, or a WISP serving rural villages — picking the right ISP license category from day one matters. Choose too broad a category and you overpay upfront. Choose too narrow and you hit a ceiling the moment you want to expand.
This guide covers all three ISP license categories — what each covers, what it costs, who it is for, and which one makes sense for your broadband business in India.
Table of Contents
- What Is an ISP License and Who Needs It?
- ISP License Category A: National Coverage
- ISP License Category B: State / Telecom Circle Level
- ISP License Category C: District / Local Level
- ISP License Fees: A vs B vs C Comparison
- Which ISP License Category Is Right for LCOs?
- Documents Required to Apply
- How to Apply for ISP License Online
- Frequently Asked Questions
- Conclusion
What Is an ISP License and Who Needs It?
An ISP license is a mandatory authorization issued by the DoT under the Indian Telegraph Act, 1885. Without this authorization, no entity can legally provide internet access services to subscribers in India — residential, commercial, or institutional.
The license is now issued as an authorization under the Unified License (UL) framework, which the DoT introduced to consolidate multiple telecom service authorizations into one umbrella structure. The UL grants permission to offer a specific service — in this case, internet services — within a defined geographic area.
Who needs an ISP license?
- Anyone selling broadband or internet access to homes, offices, or institutions
- Operators running FTTH, GPON, cable-based, or wireless ISP networks
- Entities reselling bandwidth purchased from a national telecom operator
- ISPs serving subscribers in apartments, residential colonies, or campuses
Important: simply laying fiber or providing passive network infrastructure does not require an ISP license. The license is mandatory only when you provide internet access directly to end subscribers.
ISP License Category A: National Coverage (All-India)
Category A is the broadest ISP license offered by the DoT. It authorizes the licensee to provide internet services across the entire country — all states, all telecom circles, all districts.
Who should apply for Category A?
Category A is designed for large-scale national operators: content delivery networks, enterprise internet providers, or any player with ambitions to serve customers across multiple states simultaneously. Think national backbone providers, large corporate ISPs, or CDN players with pan-India footprint.
For most LCOs, last-mile ISPs, and regional broadband operators, Category A is overkill. The operational requirements, network architecture expectations, and upfront costs are substantially higher.
Category A key details:
- Geographic scope: All of India (pan-national)
- Application processing fee: Rs. 15,000 (non-refundable)
- Entry fee: As per Annexure-II of the Unified License Agreement — verify at eservices.dot.gov.in
- License validity: 20 years
- Eligible entity: Company registered under Companies Act 2013
If your subscriber base and fiber network is concentrated in one state or a few districts, a Category A license adds compliance burden without any operational advantage.
ISP License Category B: State / Telecom Circle Level
Category B is the mid-tier ISP authorization. It allows operators to provide internet services across one or more Licensed Service Areas (LSAs) — essentially one or more telecom circles, which broadly correspond to Indian states and metro circles.
India has 22 telecom circles. Category B licensees can serve one or multiple LSAs. If your network spans more than four Secondary Switching Areas (SSAs) within a single state, or you want room to expand across the state without upgrading your license, Category B is the natural fit.
Who should apply for Category B?
- State-level ISPs or growing regional broadband players
- LCOs operating across multiple districts within a state (e.g., an operator with presence in Ernakulam, Thrissur, Kozhikode, and Palakkad simultaneously)
- Operators who want room to expand state-wide without renegotiating their license
- Established Category C operators ready to scale
Category B key details:
- Geographic scope: One or more telecom circles / LSAs
- Application processing fee: Rs. 15,000 (non-refundable)
- Entry fee: Rs. 2,00,000 (Rs. 2 lakhs) per LSA
- License validity: 20 years
- Eligible entity: Company registered under Companies Act 2013
Many LCOs transitioning from cable TV to broadband eventually upgrade from Category C to Category B as their subscriber base grows beyond a single district.
ISP License Category C: District / Local Level
Category C is the entry-level ISP license — and the most relevant for local cable operators (LCOs) and small-scale ISPs in India.
Category C authorizes internet services within a Secondary Switching Area (SSA) — typically a district or a group of towns and villages within a district. India has approximately 485 SSAs. This is the license most first-time ISPs and LCOs apply for.
Who should apply for Category C?
- LCOs launching broadband services in their cable TV coverage area (typically one or two districts)
- WISPs or small fiber ISPs serving a single taluk, district, or small city
- Operators in Kerala, Tamil Nadu, Andhra Pradesh, UP, or Maharashtra building FTTH in a defined locality
- New broadband startups testing the market before committing to state-wide scale
Category C key details:
- Geographic scope: One Secondary Switching Area (SSA) — roughly district level
- Application processing fee: Rs. 10,000 (non-refundable)
- Entry fee: Rs. 20,000 per SSA
- License validity: 20 years
- Eligible entity: Company registered under Companies Act 2013
The low entry fee and focused geographic scope make Category C the most affordable and fastest path to legally operating as an ISP at the local level. Most LCOs in Kerala, AP, and Tamil Nadu start with a Category C license for their primary district, then add SSAs as they expand.
ISP License Fees: Category A vs B vs C at a Glance
Here is a side-by-side comparison of the three ISP license categories in India:
Category A — Coverage: Pan-India | Processing Fee: Rs. 15,000 | Entry Fee: See DoT UL Annexure-II | Best For: National ISPs
Category B — Coverage: State/Telecom Circle | Processing Fee: Rs. 15,000 | Entry Fee: Rs. 2 lakhs per LSA | Best For: State ISPs, growing LCOs
Category C — Coverage: District/SSA | Processing Fee: Rs. 10,000 | Entry Fee: Rs. 20,000 per SSA | Best For: Local LCOs, new ISPs
All fees are subject to revision by the DoT. Always verify the current fee schedule at eservices.dot.gov.in before applying.
Which ISP License Category Is Right for LCOs?
For most local cable operators building their first broadband network, the answer is Category C.
Here is a simple decision framework:
- One district or city → Category C
- Multiple districts in one state → Multiple Category C licenses, or upgrade to Category B
- Across multiple states → Category B (multiple LSAs) or Category A
The economics of starting with Category C are compelling: Rs. 10,000 processing fee + Rs. 20,000 entry fee = under Rs. 31,000 to go from LCO to licensed ISP in your primary operating area. That is a one-time cost for 20 years of authorization.
Once your subscriber base crosses a few thousand connections and you start expanding into neighbouring districts, you can either apply for additional Category C licenses (one per SSA) or graduate to a Category B license.
For operators running 500–2,000 subscribers in a single district — which describes most of India's 1 lakh+ LCOs — Category C is the default starting point.
Once licensed, managing subscribers, billing, and complaints becomes your next operational challenge. lno360's subscriber management dashboard is purpose-built for licensed LCOs and ISPs — handling subscriber onboarding, plan assignment, monthly billing, and complaint tracking from one platform.
Documents Required to Apply for an ISP License
Regardless of which category you apply for (A, B, or C), the DoT requires the following documents under the Unified License framework:
Company Incorporation Documents
- Certificate of Incorporation (COI)
- Memorandum of Association (MOA) and Articles of Association (AOA)
- Board Resolution authorizing the ISP license application
Ownership and Management Details
- Shareholding pattern (names, percentage held)
- Director details: names, addresses, ID proof, residence proof
Technical Documents
- Network topology diagram
- Equipment specifications and technical capability statement
- Technical feasibility report (network architecture, bandwidth capacity, scalability)
Financial Documents
- Balance sheets and profit and loss statements
- Audited accounts demonstrating financial stability
Compliance Documents
- Security Compliance Plan (network security, data protection, cybersecurity measures)
- Draft Service Level Agreement (SLA) for subscribers
- Infrastructure ownership or lease proof
- Legal undertakings and declarations
The DoT may conduct an on-site verification of your proposed infrastructure before granting the license. Keep your equipment, office, and network documentation ready.
Once your ISP license is granted, handling monthly billing for hundreds or thousands of subscribers manually is not sustainable. lno360's automated billing module generates GST-compliant invoices, tracks payments, and flags overdue accounts automatically — saving your ops team hours every billing cycle.
How to Apply for ISP License Online in India
Since 2022, the DoT has streamlined ISP license applications through the DoT eServices portal. Here is the step-by-step process:
- Visit eservices.dot.gov.in and register your company account
- Select 'Internet Service' and choose your license category (A, B, or C)
- Fill in the application form: company details, proposed coverage area, infrastructure plan
- Upload all required documents in prescribed formats
- Pay the non-refundable processing fee (Rs. 15,000 for A/B, Rs. 10,000 for C) online
- Submit the application. DoT scrutinizes documents and may schedule an on-site inspection
- On approval, DoT issues the ISP authorization letter. Pay the entry fee to activate the license
Typical timeline: 30–90 days from submission to grant, depending on document completeness and DoT regional office workload.
Frequently Asked Questions
What is the ISP license category in India?
In India, the DoT issues ISP licenses (authorizations) under the Unified License in three categories: Category A for nationwide internet service operations, Category B for operations within one or more telecom circles (states), and Category C for operations within a single Secondary Switching Area (SSA) — roughly a district. Most local operators and LCOs start with Category C.
What is the difference between Class A and Class B ISP license?
Class A (Category A) authorizes all-India operations and carries a higher fee. Class B (Category B) restricts the licensee to one or more Licensed Service Areas — essentially telecom circles or states. An entry fee of Rs. 2 lakhs per LSA applies for Category B. Category A is for national ISPs; Category B is for state-level or multi-district operators.
Can an LCO apply for an ISP license directly without a private limited company?
No. The ISP license under the Unified License requires the applicant to be a company registered under the Companies Act 2013. Sole proprietorships and partnership firms are not eligible. LCOs operating as proprietorships must first incorporate a private limited company or equivalent before applying.
What is a Secondary Switching Area (SSA)?
An SSA (Secondary Switching Area) is a geographic unit used by the DoT for telecom licensing purposes. India has approximately 485 SSAs, roughly corresponding to districts. Category C ISP licenses authorize operations within a single SSA. An operator can hold multiple Category C licenses for multiple SSAs.
Can a Category C ISP serve subscribers in a neighbouring district?
No. A Category C license restricts operations to the authorized SSA. To serve a neighbouring district, the operator must either apply for a fresh Category C license for that SSA, or upgrade to a Category B license covering the entire telecom circle. Operating outside the authorized area is a license violation.
Is ISP license renewal automatic?
No. The ISP authorization under the Unified License is issued for 20 years, after which renewal must be applied for separately before the license lapses. The DoT typically requires renewal applications to be filed well before expiry. Renewal fee structures mirror the initial entry fees.
Conclusion
Choosing the right ISP license category in India is straightforward once you know your network footprint. For most LCOs and local broadband operators, Category C is the right starting point — low barrier, district-level coverage, 20-year validity, and affordable fees under Rs. 31,000. As your network grows into multiple districts or crosses state lines, Category B becomes the logical upgrade.
Apply via the DoT eServices portal with a properly incorporated company, organized documents, and a clear network plan. The process is cleaner than it used to be.
Once you are licensed, the real work begins: onboarding subscribers, running billing cycles, managing complaints, and dispatching technicians. lno360 is the operating system India's growing class of licensed LCOs and ISPs are using to manage all of it from one dashboard — built specifically for the realities of last-mile broadband in India.
