New Delhi, July 8 -- Last September, US officials unearthed Salt Typhoon, a Chinese group that had quietly broken into routers and switches at major telcos including AT&T, Verizon, and T-Mobile, snooping into calls and exfiltrating sensitive data of millions of users.

Given the rising tide of attacks on telecom and computer networks worldwide, India is taking no chances.

The government is set to tag customer databases, routing systems, customer relationship management systems, submarine cable line equipment, and satellite services tools as critical telecom infrastructure or CTI, two people aware of the plans said. This would subject them to greater disclosures and compel them to prepare better as nation states put their weight behind cy...