Hyderabad
Inland data-centre cluster; AWS region since 2022 and site of large colocation campuses.
In Vayam’s reporting

What is a megawatt of data centre? A field guide to MW, PUE, Tiers and GPU-hours
MeitY says India has about 1,575 MW of data centres. CBRE says it is heading for 2 GW. Both are right. Here is what every word in those headlines is actually counting.

Why India's data centres live by the sea
Thirteen of India's eighteen international cables come ashore on one six-kilometre stretch of Mumbai. The compute followed the cables, and the next landings are on the east coast.

Your ₹20 UPI payment is not allowed to leave India. That rule built buildings
Since April 2018 the RBI has required every payment record to be stored only in India. Follow one chai-stall QR scan and you find the anchor tenant of India's data-centre industry.

The building that drinks: India's data centres and the water nobody meters
India put its data centres in its thirstiest cities. After a 76% monsoon in the south, the industry's water bill is still a guess, and only one state has asked to see it.