India's Data Centre Colocation Players

Imagine wanting to run a large AI or cloud computing workload in India without building and operating your own physical data centre, an enormously capital-intensive undertaking, and instead renting server space, power and cooling infrastructure inside a facility someone else built and operates, exactly the colocation model that dominates India's data centre industry, where specialist operators build the physical infrastructure and rent capacity to cloud providers, enterprises and increasingly AI companies.

This colocation market is genuinely fragmented at the top, unlike many Indian infrastructure sectors dominated by one or two giants, Japan's NTT Global Data Centers holds the largest share at roughly 20 percent, closely followed by Sify and ST Telemedia at 19 percent each, with Airtel's Nxtra and CtrlS each around 15 percent, and newer entrants like Yotta and Adani's AdaniConneX still building toward meaningful scale, together these operators account for over 1 GW of installed capacity with more than 4.5 GW of further capacity planned.

This fragmentation matters directly for understanding the hyperscale data centre megaprojects covered elsewhere on this site, the largest, most capital-intensive projects tend to come from either the biggest colocation specialists like STT GDC, which announced a $3.2 billion investment to add 550 MW of capacity over five to six years, or from global hyperscalers building their own dedicated facilities directly, while a longer tail of smaller regional operators competes for enterprise and mid-market colocation demand.

This diversity of operators also explains why India's data centre industry has attracted such varied capital, telecom companies like Airtel leveraging existing infrastructure and land, industrial conglomerates like Adani applying their large-scale project execution capability, and specialist international operators like NTT and ST Telemedia bringing global data centre operating expertise, each betting on a different competitive advantage in the same underlying capacity boom covered elsewhere on this site.