Why in news?
BSNL's 4G stack expansion continues into 2026 with indigenous technology. As of early 2026, BSNL has deployed around 98,000 live 4G sites nationwide, using a fully software-upgradable stack developed by a TCS-Tejas Networks-C-DoT consortium.​
About BSNL 4G Stack
BSNL has launched India’s first fully indigenous 4G stack, a cloud-native, 5G-ready telecom system developed entirely with homegrown technology. It includes nearly 98,000 towers already commissioned, marking India’s entry into the elite group of nations with their own telecom stack.
- Architecture: Cloud-native, scalable, and 5G-ready.
- Purpose: To achieve strategic autonomy and reduce dependence on foreign telecom equipment.
Significance
- Global Standing: India becomes the 5th country worldwide to build and deploy its own telecom stack.
- Digital Sovereignty: Reduces reliance on foreign vendors like Nokia, Ericsson, Huawei, and ZTE.
- Resilience: Developed during the COVID-19 pandemic to ensure supply-chain independence.
- Future Ready: Designed to seamlessly upgrade to 5G and 6G networks.
Impact on India
- Economic: Boosts domestic manufacturing and reduces import costs.
- Strategic: Enhances national security by controlling telecom infrastructure.
- Technological: Encourages innovation and positions India as a telecom technology exporter.
- Deployment: Over 97,500–98,000 towers already commissioned across India. Firstpost
Challenges & Considerations
- Competition: Private operators (Jio, Airtel, Vodafone Idea) already have advanced 4G/5G networks.
- Adoption: BSNL must ensure quality of service and competitive pricing to attract users.
- Scaling: Smooth nationwide rollout and transition to 5G will be critical.
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