Ramanujan IT City, Information technology special economic zone in Tharamani, India.

Ramanujan IT City is a special economic zone in Tharamani comprising four office towers arranged around central courtyards. The complex provides 4.5 million square feet of workspace with buildings reaching 60 meters in height.

Leighton India began demolition, site clearing, bulk excavation and piling in December 2008, and construction of the new building structure started in June 2009. The zone is a joint venture of Tata Realty and Infrastructure Limited, Indian Hotels Company Limited and Tamil Nadu Industrial Development Corporation, named after the mathematician Srinivasa Ramanujan.

The towers carry the names Hardy, Carr, Neville, Cambridge and Littlewood, after mathematicians linked to Srinivasa Ramanujan; Cambridge honours the university where G. H. Hardy worked, not a person. The complex itself is named after Ramanujan, the Indian mathematician born in Erode in 1887.

The site is located opposite Thiruvanmiyur MRTS Railway Station for convenient access. Employees and visitors have access to five levels of car parking plus three basement levels.

The towers carry the names of mathematicians linked to Srinivasa Ramanujan: Hardy, Carr, Neville, Cambridge and Littlewood. The complex was designed by Skidmore, Owings & Merrill, and its office floors have plate sizes from 50,000 to 100,000 sq ft with 3.75 m floor-to-floor heights.