State-run telecom operator Bharat Sanchar Nigam Limited (BSNL) has officially launched its Quantum 5G services in India. To support this rollout, BSNL is offering free upgrades to 4G/5G SIM cards for existing 2G/3G users. Customers can now enjoy high-speed internet by upgrading their SIM cards either by visiting a BSNL Customer Service Center (CSC) or through authorized retailers. The upgrade process includes a simple e-KYC verification, and BSNL is also offering doorstep delivery in select circles.
How to Upgrade to BSNL 4G/5G SIM Card Offline
If you’re still using a BSNL 2G/3G SIM and want to switch to 4G/5G, follow these steps:
- Visit BSNL’s official website or call their customer service helpline to locate your nearest BSNL CSC or authorized retailer.
- Schedule a store visit and carry your Aadhaar card or any other valid government ID.
- Inform the customer service representative that you wish to upgrade to a BSNL 4G/5G SIM card.
- Complete the e-KYC process by providing necessary details.
- After verification, you’ll receive your new SIM card. Follow the activation instructions provided.
Due to high demand and limited availability of authorized retailers, physical visits may involve long queues. Fortunately, BSNL now offers an online solution.
How to Get BSNL 4G/5G SIM Card Online with Doorstep Delivery
BSNL has introduced an online SIM upgrade and delivery service, allowing users to upgrade or port their number to BSNL without leaving home. Customers can choose between prepaid and postpaid connections and complete self-KYC verification online.
✅ Steps to Order BSNL SIM Online:

- Visit BSNL’s new SIM registration portal.
- Fill out the customer registration form and select either prepaid or postpaid connection.
- Enter your PIN code, full name, and alternate mobile number.
- Verify your mobile number using the OTP sent to your phone.
- Complete the remaining details and submit the form.
Once verified, your BSNL 4G/5G SIM card will be delivered to your doorstep. For any queries, customers can contact BSNL’s helpline at 1800-180-1503.
Is There a Delivery Fee?
It remains unclear whether BSNL will charge for doorstep SIM delivery. Private telecom operators like Airtel, Jio, and Vodafone Idea (Vi) have been offering free SIM delivery services for years. BSNL’s move is expected to boost its competitiveness in the Indian telecom market.