Telecom Operators
BSNL 4G SIM Upgrade Complaint — 1503 and 1800-180-1503
Mobile Network
1503
Complaint / support number
pgm.cfa@bsnl.co.in
Email
Telecom Operators
Category
BSNL is rolling out its 4G network across India after a significant delay. Subscribers who have been on 2G or 3G networks are now seeking 4G SIM upgrades, and complaints related to BSNL 4G are among the most searched telecom issues currently.