Summary:
On September 27, 2025, Prime Minister Narendra Modi announced the full indigenous 4G stack of BSNL developed by TCS, C-DoT and Tejas Network. “Made in India” technology ensures sovereign telecom security, supports seamless 5G upgrades, and is a significant step in India’s self-reliance in telecom infrastructure. BSNL also confirmed plans to launch 5G services in Mumbai and Delhi by December 2025.
BSNL’s Indigenous 4G Rollout
According to Telecom Minister Jyotiraditya Scindia, BSNL has deployed 98,000 4G sites which are indigenous stack. The system is software based, cloud-based and designed for smooth transition to 5G, making it a future-ready solution for digital growth of India.
Why This Matters for India
Indigenous Stack in telecom is a landmark achievement. This reduces the dependence on foreign vendors by opening the opportunities to export Indian telecom technology globally. This strengthens national security and ranks India as a potentially global player in the next generation network.
A proud moment for BSNL!
— BSNL India (@BSNLCorporate) September 27, 2025
Hon’ble PM Shri Narendra Modi launches the Swadeshi 4G network (5G-ready) from Odisha today, Connecting every corner, empowering every citizen.
With this India joins the world’s top 5 digital nations.
BSNL’s Swadeshi network marks the beginning of a… pic.twitter.com/52XgHBzBo2
C-DOT Innovation, India’s 4G Revolution!
— C-DOT (@CDOT_India) September 28, 2025
India’s very own 4G /5G (NSA) Core, developed by @CDOT_India, is powering the #nationwide rollout of @BSNLCorporate’s #4G network under the #atmanirbharbharat vision of Hon’ble Prime Minister Shri @narendramodi Ji.
i. Secure – Protecting… pic.twitter.com/YmrTTgUOXc
BSNL’s 5G Roadmap
BSNL plans to launch 5G services in Delhi and Mumbai by December 2025, using the same homemade technology. The successful rollout will help India build a strong basis for 6G development and reinforce the country’s ambition to lead in telecom innovation.
India’s Growing Telecom Manufacturing Hub
Scindia emphasized the momentum, noting that global giants such as Cisco, Ericsson, VVDN, Jabil, Flex and Dixon expand production in India. This shift signals India’s increase not only as a telecom hub, but also as a telecommunications equipment making hub.
Conclusion
The launch of BSNL’s indigenous 4G stack and the next 5G rollout is a huge moment in India’s telecom history. With a safe, scalable and export-prepared platform, India will strengthen its digital sovereignty while Future 6G will be founded for innovation.
